CLOUD PLATFORM

Quant Research
in the Cloud

Quickly deploy quantitative
strategies on the QuantConnect
Cloud Platform.

Table of Content

Welcome

QuantConnect is an open-source, community-driven algorithmic trading platform. Our trading engine is powered by LEAN , a cross-platform, multi-asset technology that brings cutting-edge finance to the open-source community. We support Python and C# programming languages.

Our Mission

Quantitative trading infrastructure should be open-source. Millions of financial engineers rewrite the same infrastructure and then keep their work closed to make it harder for competing trading firms. We take a radically open approach to quant finance and let our users focus on alpha, not infrastructure.

The future of finance is automated and we are the open-source infrastructure to power this future. Firms choose our open-source platform as it provides a 10-100x improvement in time to market and substantially reduces the risk of developing your quantitative tools. As our brokerage and data integrations expand, this leverage will be more exceptional.

Everyone should have access to quantitative finance. Algorithmic trading is a powerful tool and we want to open it up to all investors. We do this with transparent, scalable pricing that allows all investors to access quantitative finance. For more information on our mission, check out our Manifesto .

Data Library

We provide an enormous library of data for your backtesting, research, and live trading. The library includes data for Equities, Options, Futures, CFDs, Forex, Crypto, Indices, and alternative data. The library is roughly 400TB in size, contains trade data that spans decades into the past, and comes in tick to daily resolutions. View he Dataset Market to see all of the datasets that we have available, including their respective start dates, end dates, and resolutions. The following image shows the integrated data providers:

Business Model

QuantConnect provides cloud infrastructure as a service, similar to many cloud compute vendors. We encourage quants and start up firms to grow within our ecosystem to keep our pricing accessible to individuals and small firms.

For companies interested in running QuantConnect on-premise, we can install it within your corporate firewall and help you get set up with financial data. We charge a set up and maintenance fee for these installations.

Getting Started

GET STARTED WITH QUANTCONNECT

Guide through creating a project, running your first backtest, and live algo trading.

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Follow these steps to create, backtest, and paper trade a new algorithm:

1. Log in to the Algorithm Lab .

2. On the Projects page, click Create New Algorithm .

3. A new project opens in the Cloud Integrated Development Environment (IDE) .

4. At the top of the IDE, click the Build icon.

5. At the top of the IDE, click the Backtest icon.

The backtest results page displays your algorithm’s performance over the backtest period.

6. At the top of the IDE, click the Deploy Live icon.

7. On the Deploy Live page, click the Brokerage field and then click Paper Trading from the drop-down menu.

8. Click Deploy .

The live results page displays your algorithm’s live trading performance.

To deploy a live algorithm with a different brokerage, see the Deploy Live Algorithms section of the brokerage integration documentation .

Security and IP

Introduction

You own all your intellectual property and your code. Your code is private by default unless you explicitly share it with the community in the forums or with another team member via collaboration. You are creating valuable intellectual property, and we respect this and wish to make it easier. We limit the QuantConnect staff members who have access to the database. If we ever need access to your algorithm for debugging, then we will explicitly request permission first.

Intellectual Property

The following sections explain our commitment to protecting your intellectual property.

Ownership

You own all your intellectual property and your code. Your code is private by default unless you explicitly share it with the community in the forums or with another team member via collaboration. You are creating valuable intellectual property; we respect this and wish to make it easier. We document this publicly in our Terms of Service.

Alignment

Beyond words and our legal terms of service, we live this through the alignment of our business model with you, our clients. We aim for you to become more successful, thereby growing within our ecosystem. We've served start-up quant funds as they've grown from $0 to $1B+ AUM.

Reputation and Track Record

Established in 2012, we have a pristine reputation and a 10+ year record of protecting our community's intellectual property. We have served more than 200,000 clients. If we were to violate the trust of even a single client, we'd lose the entire community's faith - it is simply not worth it. We seek to change the future of finance and are driven by this mission.

Sharing

QuantConnect provides support with a specific support agent, not an anonymous team. When submitting a support ticket, you explicitly grant that team member access to your project. You can remove the support agent from your project collaboration at any time.

Security

We take a multi-level approach to security, from physical security to digital and information systems, internal processes, and testing.

Physical Security of Servers

Physical access to our servers is limited to a few dedicated team members who QuantConnect has vetted. Only those credentialed team members can access the physical servers, and we schedule all work in advance. Work on the servers is always done in pairs to prevent single rouge actors from accessing the servers. We host our servers in a world-class security facility (Equinix) with security staff 24/7.

Information and Digital Security

We use all good common sense information security processes: passwordless servers, encryption in the database and backups, encrypted traffic, and network monitoring. We keep most of our servers off the internet and only available on private networks for the smallest possible surface area. We have regular network and code penetration testing. All code is containerized and isolated in services so that root network access would provide little-to-no benefit.

Beyond these basics, we've built active monitoring technology which proactively detects and blocks threats. We have human detection services to reduce the chances of brute-force attacks. We have documented processes for client notifications in the event of strange network activity.

Processes

Deployment environments are automated and enforce code peer-review to be deployed, reducing the chances of a rouge internal agent.

We limit staff access to the physical servers, restricting core database access to only a handful of senior staff. Database credentials are carefully restricted in scope, access locations and frequently rotated.

Privacy

Protecting users' private and intellectual property is of utmost importantance to us. QuantConnect complies with GDPR and all relevant privacy laws. We will never sell or publish your email address. We request knowledge of your real identity to ensure compliance with our data licenses but accept using an alias on public profiles for privacy. For more information about what data we collect, which tracking technologies we use, and how we use and share your data, see our Privacy Policy .

Organizations

Organizations > Getting Started

Introduction

An organization is a collection of members that share hardware resources, share access to datasets, and collaborate together to develop projects. Hardware resources are used to run backtests, launch research notebooks, deploy live trading algorithms, and store project data. You can create new organizations and join existing ones. You can be a member in any number of organizations. We offer several organization tiers so you can tailor your team's subscriptions as you grow over time. For the times when you need access to a QuantConnect engineer to help solve development issues, assign support seats among your team. There are several tiers of support seats to match the level of support your team requires.

Add Organizations

Follow these steps to add new organizations to your profile:

1. Log in to the Algorithm Lab.
2. In the top navigation bar, click Connected as: organizationName .
3. In the Switch Organization panel, click Create Organization .
4. Enter the organization name and then click Add .

The organization name must be unique. "Created Successfully" displays.

Switch Organizations

Follow these steps to switch organizations:

1. Log in to the Algorithm Lab.
2. In the top navigation bar, click Connected as: organizationName .
3. In the Switch Organization panel, click the name of the organization for which you want to connect.

The top navigation bar displays the new organization name.

Rename Organizations

Follow these steps to change your organization name:

1. Open the organization homepage .
2. Hover over the organization name and then click the pencil icon that appears.

3. Enter the new organization name and then click Save Changes .

"Organization Name Updated Successfully" displays.

Organizations > Tier Features

Introduction

An organization is a collection of members that share hardware resources, share access to datasets, and collaborate together to develop projects. Hardware resources are used to run backtests, launch research notebooks, deploy live trading algorithms, and store project data. You can create new organizations and join existing ones. You can be a member in any number of organizations. We offer several organization tiers so you can tailor your team's subscriptions as you grow over time. For the times when you need access to a QuantConnect engineer to help solve development issues, assign support seats among your team. There are several tiers of support seats to match the level of support your team requires.

Organizations let you coordinate resources and teamwork on QuantConnect Cloud. There are 5 tiers of organizations and each tier has its own set of features. Each account starts with a personal organization on the Free tier with access to one free backtest node and one free research node. However, to accommodate the growth of your trading skills and business, you can adjust the tier of your organization at any time. Higher tiers offer more live nodes to run more live algorithms, more backtesting nodes for faster concurrent backtesting, and many other features.

Free Tier

The Free tier provides cloud access to datasets for all of the asset classes in our Datasets Market . The free data ranges from minute to daily resolutions and can be used to either run backtests or perform analysis in the Research Environment . When backtesting, Free organizations have access to our built-in auto-complete and debugging features in the web IDE. After a successful backtest, Free organizations can use our report generator to create professional-grade reports that reflect their backtest performance. Free organizations have access to our online documentation, community forum, YouTube channel, and Learning Center.

Quant Researcher Tier

The Quant Researcher tier is designed for self-directed investors, students, academics, and independent traders seeking to manage their personal portfolio. We recommend the Quant Researcher Pack to make the most of QuantConnect.

The Quant Researcher tier builds on the features included in the Free tier. Organizations on the Quant Researcher tier have access to the QuantConnect API and can use the CLI to run Lean locally. When members in these organizations need assistance from a QuantConnect engineer, support seats are available to request private support . Members within Quant Researcher organizations that have the required permissions can adjust the resources within the organization.

In Quant Researcher organizations, members can use second and tick resolution data from the Datasets Market. There is no limit on the number of projects these organizations can hold. They can produce up to 100KB of logs/backtest, 3MB of logs/day. 10 million orders/backtest, and can have up to two backtesting nodes to run up to two concurrent backtests. Members in these organizations can have up to two active coding sessions in the organization. After a successful backtest, members in these organizations can use parameter optimization tools to improve the performance of their backtest. When the members are ready to deploy strategies live, Quant Researcher organizations can subscribe to up to 2 live trading nodes to unlock live trading with real or paper money. Each live algorithm in a Quant Research organization can send up to 20 Telegram, Email, or Webhook notifications per hour for free. SMS notifications and additional Telegram, Email, or Webhook notifications require QuantConnect Credit (QCC).

Team Tier

The Team tier is designed for sophisticated individuals and teams of quant collaborators such as Quant Start Ups, Fintech Companies, and Emerging Managers. We recommend the Team Pack to make the most of QuantConnect.

The Team tier expands on the features included in the Quant Researcher tier. Organizations on the Team tier can have up to 10 members and the members can collaborate on projects together. These organizations can produce 1MB of logs/backtest, 10MB of logs/day, and there is no limit on the number of orders that they can place in backtests. Organizations on the Team tier can have up to 10 backtesting nodes, 10 research nodes, and 10 live trading nodes. Members in these organizations can have up to four active coding sessions in the organization.

To accommodate a large number of projects in Team organizations, these organizations can expand the capacity of their ObjectStore up to 10GB. Annual contracts for onboarding services are available on request to get teams operational in the shortest amount of time. When live trading, Team organizations have more options than the lower tiers because both the Trading Technologies brokerage and our live Futures data feed are available. Each live algorithm in a Team organization can send up to 60 Telegram, Email, or Webhook notifications per hour for free.

Trading Firm Tier

The Trading Firm tier is designed for growing quantitative firms, prop desks, hedge funds, ETF companies, professional teams of quants, and sophisticated independent investors. It has special features for collaborating with consultants to protect the investor IP. If you are a company on QuantConnect, we recommend the Trading Firm Pack to make the most of QuantConnect.

The Trading Firm tier builds on the features included in the Team tier. Organizations on the Trading Firm tier can have an unlimited number of members and an unlimited number of collaborators simultaneously working on individual projects. The IP ownership of all the projects in these organizations remains within the organization. There is no limit on the number of backtesting, research, and live trading nodes these organizations can rent. They can produce 5MB of logs/backtest and 50MB of logs/day. Members in these organizations can have up to eight active coding sessions in the organization. Each live algorithm in a Trading Firm organization can send up to 240 Telegram, Email, or Webhook notifications per hour for free.

The owner of a Trading Firm organization can grant various permissions to the organization’s members, including designating a member to manage the organization's billing. These organizations have access to custom lean builds, so they can use feature branches or historical master branches to run their strategies. An example of this could be granting only a few members of your team live trading deployment access.

In addition to the brokerages and data feeds available to Team organizations, Trading Firm organizations can use Interactive Brokers Financial Advisor accounts to manage sub-accounts for clients.

Institution Tier

The Institution tier is designed for established larger funds, large prop desks, hedge funds, banks, ETF vehicles, and professional teams of quants. It is "unlocked", so you can run it on premise to serve your internal teams. If this sounds interesting, reach out and we'd be happy to arrange a demonstration for your department.

The Institution tier builds on the features included in the Trading Firm tier. Organizations on the Institution tier have no limit on the amount of backtest logs that they can produce and each member in the organization can have up to 16 active coding sessions. These organizations can use the Terminal Link CLI tool to live trade Equities, Futures, and Options via the Bloomberg EMSX. They can also request custom libraries and frameworks to use in the QuantConnect web IDE and receive instant messaging support from a QuantConnect engineer. Each live algorithm in an Institution organization can send up to 3,600 Telegram, Email, or Webhook notifications per hour for free.

Organizations > Resources

Introduction

Organizations can subscribe to hardware resources to run backtests, launch research notebooks, and deploy live trading algorithms to co-located servers. Organizations also have access to storage resources via the ObjectStore to store data between backtests or live trading deployments. To promote efficiency, all of these resources within your organization are shared among all of the members within the organization. A team of several quants can all share one backtest, research, and live trading node.

Backtesting Nodes

Backtesting nodes enable you to run backtests. The more backtesting nodes your organization has, the more concurrent backtests that you can run. Several models of backtesting nodes are available. Backtesting nodes that are more powerful can run faster backtests and backtest nodes with more RAM can handle more memory-intensive operations like training machine learning models, processing Options data, and managing large universes. The following table shows the specifications of the backtesting node models:

Refer to the Pricing page to see the price of each backtesting node model. You get one free B-MICRO backtesting node in your first organization. This node incurs a 20-second delay when you launch backtests, but the delay is removed and the node is replaced when you subscribe to a new backtesting node in the organization.

GPU nodes perform best on repetitive and highly-parallel tasks like training machine learning models. It takes time to transfer the data to the GPU for computation, so if your algorithm doesn't train machine learning models, the extra time it takes to transfer the data can make it appear that GPU nodes run slower than CPU nodes.

You can't use backtesting nodes for optimizations . The CPU nodes are available on a fair usage basis. The GPU nodes can be shared with a maximum of three members. Depending on the server load, you may use the all of the GPU's processing power.

Research Nodes

Research nodes enable you to use the Jupyter Research Environment . Several models of research nodes are available. More powerful research nodes allow you to handle more data and run faster computations in your notebooks. The following table shows the specifications of the research node models:

Refer to the Pricing page to see the price of each research node model. You get one free R1-4 research node in your first organization, but the node is replaced when you subscribe to a new research node in the organization.

The CPU nodes are available on a fair usage basis. The GPU nodes can be shared with a maximum of three members. Depending on the server load, you may use all of the GPU's processing power.

Live Trading Nodes

Live trading nodes enable you to deploy live algorithms to our professionally-managed, co-located servers. Several models of live trading nodes are available. More powerful live trading nodes allow you to run algorithms with larger universes and give you more time for machine learning training. Each security subscription requires about 5MB of RAM. The following table shows the specifications of the live trading node models:

Refer to the Pricing page to see the price of each live trading node model.

GPU nodes perform best on repetitive and highly-parallel tasks like training machine learning models. It takes time to transfer the data to the GPU for computation, so if your algorithm doesn't train machine learning models, the extra time it takes to transfer the data can make it appear that GPU nodes run slower than CPU nodes.

Sharing Resources

Your organization's nodes are shared among all of the organization's members to reduce the amount of time that nodes idle. In the Algorithm Lab, you can see which nodes are available within your organization. By default, the best-performing resource is selected when you run a backtest or launch a research notebook, but you can select a specific resource to use .

Node Quotas

The following table shows the number of nodes each organization tier can have:

Training Quotas

Algorithms normally must return from the OnData method within 10 minutes, but the Train method lets you increase this amount of time. Training resources are allocated with a leaky bucket algorithm where you can use a maximum of n-minutes in a single training session and the number of minutes available refills over time. This gives you a reservoir of training time when you need it and recharges the reservoir to prepare for the next training session. The reservoir only starts draining after you exceed the standard 10 minutes of training time.

The following animation demonstrates the leaky bucket algorithm. The tap continuously adds water to the bucket. When the bucket is full, water spills over the rim of the bucket. The water represents your training resources. When your algorithm exceeds the 10 minutes of training time, holes open at the bottom of the bucket and water begins to drain out. When your algorithm stops training, the holes close and the bucket fills up with water.

The following table shows the amount of extra time that each backtesting and live trading node can spend training machine learning models:

The refill rate in the table above is based on the real-world clock time, not the backtest clock time. In backtests, the Train method is synchronous, so it will block your algorithm from executing while the model is trained. In live trading, the method runs asynchronously, so ensure your model is ready to use before you continue executing the algorithm. Training occurs on a separate thread, so use a semaphore to track the model state.

Log Quotas

Per our Terms and Conditions , you may not use the logs to export dataset information. The following table shows the amount of logs each organization tier can produce:

If you delete a backtest or project that produced logs, your quotas aren't restored. Additionally, daily log quotas aren't fully restored at midnight. They are restored according to a 24-hour following window.

The log files of each live trading project can store up to 100,000 lines for up to one year. If you log more than 100,000 lines or some lines become older than one year, we remove the oldest lines in the files so your project stays within the quota.

To avoid reaching the limits, we recommend logging sparsely, focusing on the change events instead of logging every time loop. You can use the debugger to inspect objects during runtime. If you use the debugger, you should rarely reach the log limits.

Coding Session Quotas

If you have a project open, it uses a coding session. Paid organizations can have multiple active coding sessions, but free users can only have one coding session open at a time. The following table shows how many active coding sessions you can have on each organization tier:

If the organization you're in has more live trading nodes than your initial coding session quota, then your coding session quota increases to the number of live trading nodes you have in the organization so you can view all your live strategies.

The quota for free organizations is a global quota, so you can have one active coding session across all of your free organizations. The quotas for paid organizations are at the organization level. Therefore, if you are in two Quant Researcher organizations, you can have two active coding sessions in one of those organizations and another two active sessions in the other organization. These paid tier quotas are for each account, not for the organization as a whole. For instance, a Trading Firm organization can have more than eight members and all of the members can simultaneously work on projects within the organization.

File Size Quotas

The maximum file size you can have in a project depends on your organization's tier. The following table shows the quota of each tier:

Live Trading Notification Quotas

The number of Telegram, email, or webhook notifications you can send in each live algorithm for free depends on the teir of your organization. The following table shows the hourly quotas:

If you exceed the hourly quota, each additional Telegram, email, or webhook notification costs 1 QuantConnect Credit (QCC).

Each SMS notification you send to a US or Canadian phone number costs 1 QCC. Each SMS notification you send to an international phone number costs 10 QCC.

View All Nodes

The Resources page displays your backtesting, research, and live trading node clusters. To view the page, log in to the Algorithm Lab and then, in the left navigation bar, click Organization > Resources .

To toggle the format of the page, click the buttons in the top-right. If the page is in table view, each cluster section includes a table with the following columns:

Add Nodes

You need billing permissions in the organization to add nodes.

Follow these steps to add nodes to your organization:

1. Open the Resources page.
2. Click Add nodeType Node for the type of node you want to add.
3. Select the node specifications.
4. Click Add Node .

The Resources page displays the new node.

Remove Nodes

You need billing permissions in the organization to remove nodes. If you remove nodes during your billing period, your organization will receive a pro-rated credit on your account, which is applied to future invoices.

Follow these steps to remove nodes from your organization:

1. Log in to the Algorithm Lab.
2. In the left navigation bar, click Organization > Home .
3. On the organization homepage, click Edit Plan .
4. Click the Customize Plan > Build Your Own Pack > Compute Nodes tab.
5. Click the minus sign next to the node model you want to remove.
6. Click Proceed to Checkout .
   

Rename Nodes

We assign a default name to hardware nodes that includes the model name and an arbitrary string of characters, but you can follow these steps to rename the nodes in your organization:

1. Open the Resources page.
2. Click Set Name on the node that you want to rename.
3. Enter the new node name and then click Save Changes .

The Resources page displays the new node name.

Stop Nodes

You need stop node permissions in the organization to stop nodes other members are using. If you stop a node, it terminates the running backtest, research, or live trading sessions. When you stop a live trading node, the portfolio holdings don't change but the algorithm stops executing.

Follow these steps to stop nodes that are running in your organization:

1. Open the Resources page.
2. Click the icon with the three horizontal lines icon in the top-right corner to format the page into table view.
   

3. Click Stop in the row with the node that you want to stop.

Organizations > Data Storage

Introduction

The ObjectStore is an organization-specific key-value storage location to save and retrieve data in QuantConnect's cache. Similar to a dictionary or hash table, a key-value store is a storage system that saves and retrieves objects by using keys. A key is a unique string that is associated with a single record in the key-value store and a value is an object being stored. Some common use cases of the ObjectStore include the following:

• Transporting data between the backtesting environment and the research environment.
• Training machine learning models in the research environment before deploying them to live trading.

The ObjectStore is shared across the entire organization. Using the same key, you can access data across all projects in an organization.

Supported Types

The ObjectStore has helper methods to store strings, JSON objects, XML objects, and bytes.

The ObjectStore has helper methods to store strings and bytes.

ObjectStore.Save(stringKey, stringValue);
ObjectStore.SaveJson<T>(jsonKey, jsonValue);
ObjectStore.SaveXml<T>(xmlKey, xmlValue);
ObjectStore.SaveBytes(bytesKey, bytesValue);

self.ObjectStore.Save(string_key, string_value)
self.ObjectStore.SaveBytes(bytes_key, bytes_value)

To store an object that is in a different format, you need to encode it to one of the supported data types. For instance, if you train a machine learning model and it is in binary format, encode it into base 64 before saving it.

The ObjectStore also has helper methods to retrieve the stored objects.

var stringValue = ObjectStore.Read(stringKey);
var jsonValue = ObjectStore.SaveJson<T>(jsonKey);
var xmlValue = ObjectStore.SaveXml<T>(xmlKey);
var bytesValue = ObjectStore.SaveBytes(bytesKey);

string_value = self.ObjectStore.Read(string_key)
bytes_value = self.ObjectStore.ReadBytes(bytes_key)

For complete examples of using the ObjectStore, see Object Store .

Storage Sizes

All organizations get 50 MB of free storage in the ObjectStore. Paid organizations can subscribe to more storage space. The following table shows the cost of the supported storage sizes:

Research to Live Considerations

When you deploy a live algorithm, you can access the data within minutes of modifying the ObjectStore. Ensure your algorithm is able to handle a changing dataset.

The live environment's access to the ObjectStore is much slower than in research and backtesting. Limit the individual objects to less than 50 MB to prevent live trading access issues.

Monitor Usage

The Resources page shows the total storage used in your organization and the storage used by individual projects so that you can easily manage your storage space. To view the page, log in to the Algorithm Lab and then, in the left navigation bar, click Organization > Resources.

Edit Storage Plan

You need storage billing permissions and a paid organization to edit the size of the organization's ObjectStore.

Follow these steps to edit the amount of storage available in your organization's ObjectStore:

1. Log in to the Algorithm Lab.
2. In the left navigation bar, click Organization > Resources .
3. On the Resources page, scroll down to the Storage Resources and then click Add Object Store Capacity .
4. On the Pricing page, select a storage plan.
5. Click Proceed to Checkout .

Delete Storage

To free up storage space, delete the key-value pairs in the ObjectStore by calling the Delete method with a key.

ObjectStore.Delete(key);

self.ObjectStore.Delete(key)

Organizations > Support

Introduction

The community is a great resource for support for developing algorithms. However, for more personalized assistance and privacy, you can submit support tickets to request assistance from a QuantConnect engineer. Premium support allows you to share your algorithms with IP protection and enables the Support Team to address issues with live algorithms. In order to submit a support ticket, you must have a support seat in your organization.

There are three tiers of support seats and each tier provides different services. You can file support tickets to get private assistance with issues, but support tickets should not replace your efforts of performing your own research and reading through the documentation. If you need further assistance than what our Support Team offers, consider hiring an Integration Partner .

Features

The services our Support Team provides depend on the tier of your support seat.

Bug Reports

The Lean trading engine is under constant development, so you may occasionally experience bugs when using it. If you think you have found a bug, share a simple backtest with us that reproduces the issue. You can contact us either through email , Discord , or the forum . We will review your submission. If we confirm you've found a bug, we will create a GitHub Issue to have it resolved. Subscribe to the GitHub Issue to track our progress in fixing the bug.

Feature	Community	Bronze	Silver	Gold
Bug Reports

Email Support

Our support ticket system enables you to privately email with our Support Team. We address support tickets in a first-in, first-out order, but we give priority to tickets opened by members with higher support seats. The following table shows our response time for each of the support tiers:

Feature	Community	Bronze	Silver	Gold
Email Support	-

IP Protection

If you attach a backtest or live trading deployment when you open a support ticket , the intellectual property of your project is protected. We have a restricted subset of the Support Team who can access private support tickets. Using paid support plans ensures only a limited subset of the QuantConnect team can access the algorithms you attach to support tickets. These team members are carefully selected, have been at QuantConnect for at least 2 years, and have passed a background check. In contrast, if you share a backtest or live trading deployment to the forum for assistance, your project becomes part of the public domain.

Feature	Community	Bronze	Silver	Gold
IP Protection	-

Live Trading Debugging

Paid support plans have access to our live deployment debugging service. If you experience an issue with a live trading deployment, open a support ticket. We can assist with uncovering the issue, fixing the issue, and getting you ready to redeploy the algorithm. We can't assist with live trading issues in the community forum or Discord.

Feature	Community	Bronze	Silver	Gold
Live Trading Debugging	-

Algorithm Design Suggestions

If you have a silver or gold support seat, we can offer suggestions on the design of your algorithms. Our Support Team members are experts on the inner workings of Lean, so we can guide you on improving the efficiency of your algorithms by following our common design patterns. We can usually reduce the size of your project's code files and increase the speed of your project backtesting.

Feature	Community	Bronze	Silver	Gold
Algorithm Design Suggestions	-	-

Private Chatroom

When you require instant access to our Support team, we can open a private chatroom in Discord. In our private chatroom, you can ask our Support Team questions at any time and we focus on responding as quickly as we can. Request a private chatroom to avoid waiting for email responses on your support tickets.

Feature	Community	Bronze	Silver	Gold
Private Chatroom	-	-	-

Phone Call Consultations

We offer phone support to members with gold support seats. You can take advantage of our phone support for up to 1 hour per month. During phone calls, feel free to ask about anything related to QuantConnect, Lean, or quant trading. We recommend planning your questions before you call in order to best utilize the time available.

Feature	Community	Bronze	Silver	Gold
Phone Call Consultations	-	-	-

Summary

The following table shows the features available in each tier:

Feature	Community	Bronze	Silver	Gold
Bug Reports
Email Support	-
IP Protection	-
Live Trading Debugging	-
Algorithm Design Suggestions	-	-
Private Chatroom	-	-	-
Phone Call Consultations	-	-	-

View All Seats

The Team Management page displays the support seat assignments within your organization. To view the page, log in to the Algorithm lab, and then in the left navigation bar, click Organization > Members .

Add Seats

Follow these steps to assign support seats to members in your organization:

1. Open the Team Management page.
2. Scroll down to the Organization Support section and then click Add Seat .
3. On the Support page, click Select under the tier of seat you want to assign.
4. In the Assign seatTier Seat section, click the team member field and then select the team member you want to assign the seat to from the drop-down menu.
5. Click Add Seat +$ price .

View All Tickets

The Support History page displays all of your organization's support tickets. To view the page, log in to the Algorithm Lab and then, in the left navigation bar, click Support > Organization Tickets .

To see all closed tickets, click Closed . To view the conversation history with our Support Team regarding a ticket, click a ticket.

Open New Tickets

Follow these steps to open support tickets:

1. Log in to the Algorithm Lab.
2. In the left navigation bar, click Support .
3. On the Support page, enter a subject and message.
4. If you want to attach a live deployment or backtest to the support ticket, follow these steps:
1. Click Add Project , select a project, and then click OK .
2. (Optional) Click Add Live Deployment , select a live deployment, and then click OK .
3. (Optional) Click Add Backtest , select a backtest, and then click OK .
5. Click the By submitting this request, I give QuantConnect Support Staff permission to view my project check box.
6. Click Send .

Comment on Tickets

Follow these steps to comment on support tickets:

1. Open the Support History page.
2. If the ticket you want to comment on is closed, click Closed .
3. Click the ticket on which you want to comment.
4. Enter your comment and then click Send .

Close Tickets

Follow these steps to close support tickets:

1. Open the Support History page.
2. Click the ticket you want to close.
3. (Optional) Enter a reason for closing the ticket.
4. Click Send and Close Ticket .

Open Closed Tickets

Follow these steps to open closed support tickets:

1. Open the Support History page.
2. Click Closed .
3. Click the ticket that you want to open.
4. (Optional) Enter a reason for opening the ticket.
5. Click Open Ticket and Send .

Ticket Quotas

The following table shows the number of tickets each seat tier can have open at one time:

Organizations > Members

Introduction

Organizations consist of members and members can be part of multiple organizations. The number of members your organization can have depends on the tier of your organization. All members in your organization can access the resources within the organization. If you are the manager of a Trading Firm or Institution organization, you can grant additional permissions to your team members.

View All Seats

You need a seat for each member in your organization.

To see the number of team seats you have in your organization, open the Billing page and then scroll down to the Products section.

Add Seats

You need billing permissions within an organization to add team seats.

Follow these steps to add team seats to your organization:

1. Open the organization homepage .
2. Click Edit Plan .
3. Click the Customize Plan > Build Your Own Pack > Organization Seats tab.
4. In the organizationTier Seats section, click the plus icon.
5. Click Proceed to Checkout .

View All Members

The Team Management page displays all of the members in your organization. To view the page, log in to the Algorithm Lab and then, in the left navigation bar, click Organization > Members .

To toggle the format of the page, click the buttons in the top-right.

Membership Quotas

The number of members your organization can have depends on the organization's tier . In general, higher organization tiers can have more members within the organization to share resources. This design enables you to upgrade your organization as your trading business grows over time. The following table shows the number of members each organization tier can have:

Add Members

You need vacant team seats and team add permissions within an organization to add team members.

Follow these steps to add team members to your organization:

1. Open the Team Management page.
2. Click Add Member .
3. Enter the email address of the new team member and then click Add Member .

The email you enter should be the email the new member uses to log in to their QuantConnect account.

4. If you have team edit permissions, select the permissions for the new member and then click Save Changes . Otherwise, click Cancel .

The Team Management page displays and the new member is included.

Remove Members

You need team removal permission to remove members from your organization. Before removing members, stop all nodes they are using. Removing members is not reversible and the members will lose access to the organization's projects. On the Team tier, projects that the members created in the organization will remain with the members. On the Trading Firm and Institution tiers, projects that the members created in the organization will be transferred to the organization manager.

Follow these steps to remove members from your organization:

1. Open the Team Management page.
2. If the Team Management page is in tile view, follow these steps:
1. Click the three dots icon in the top-right corner of the member you want to remove and then click Remove .

2. Click Remove .
3. If the Team Management page is in table view, follow these steps:
1. Click Remove next to the member you want to remove from the organization.

2. Click Remove .

Permissions

Each member of your organization has access to the resources within the organization. If you are the manager of a Trading Firm or Institution organization, you can grant additional permissions to your team members. There are several categories of permissions.

Billing Permissions

The following table shows the supported billing permissions:

Stop Node Permissions

The following table shows the supported node permissions:

To stop active nodes, see Stop Nodes .

Team Permissions

The following table shows the supported team permissions:

Storage Permissions

The following table shows the supported team permissions:

Edit Permissions

You need team edit permission to edit the permissions of team members.

Follow these steps to edit team permissions:

1. Open the Team Management page.
2. If the Team Management page is in tile view, follow these steps:
1. On the Team Management page, click the three dots in the top-right corner of the member you want to edit and then click Edit Permissions .

2. Select and deselect permissions as desired and then click Save Changes .
3. If the Team Management page is in table view, follow these steps:
1. On the Team Management page, click Edit Permissions next to the member whose permissions you want to edit.

2. Select and deselect permissions as desired and then click Save Changes .

Organizations > Administration

Introduction

You can view and manage your organizations from the Algorithm Lab. The algorithms you store in the Algorithm Lab are secure and you maintain their intellectual property.

Intellectual Property

All individuals on QuantConnect own their intellectual property (IP) on our platform. Your code is private and only accessible by people you share the project with and with support-engineers when you submit a support ticket. At no point does QuantConnect ever claim ownership of user IP. The only case where algorithm code becomes public domain is when they are shared to the forum. In this case, algorithms need to be made public domain to allow the sharing of the algorithm code.

It is common when companies hire engineers to write software, they require their employees to sign an agreement that gives the company IP ownership of any code written for work. They need this because they're paying you to write software, and the company needs to sell that software to turn a profit. Similarly, the Organizations feature allows you to control who holds IP ownership over a project. Each type of organization has its own mechanisms for handling project IP ownership.

Individual Organizations

The Free and the Quant Researcher tiers only allow single-member organizations. This means you can't collaborate with anyone else inside the QuantConnect platform. Simply put, you own the IP for any projects you work on since you are the sole collaborator.

Team Organizations

For organizations that allow multiple users to collaborate on projects, the user who created the project owns it; this can be you or one of your teammates. If you add a teammate/collaborate, they can clone it, but the original project belongs to the person who first created it.

Trading Firm & Institution Organizations

For Trading Firm and Institution organizations, which are generally used by companies and funds, the firm owns all employee projects. This is made to suit firms that wish to hire consultants and need to ensure the code remains with the company when the consultant work is finished. You have to explicitly create a project in an organization for it to be created on the organization's account.

Corporate Branding

You can customize your organization’s image, name, and description in the Algorithm Lab to match your branding. If you have a Trading Firm or Institution organization, you can integrate the Algorithm Lab into your website so that your company logo is in the navigation bar and the color matches your website's theme.

Migrating Projects

If you are the administrator of an organization, you can migrate a project out of the organization to another organization in which you’re a member. When your project is migrated, the project files are copied but the content stored in the ObjectStore is not retained.

View the Organization Homepage

The organization homepage displays a summary of your organization. To view the page, log in to the Algorithm Lab and then, in the left navigation bar, click Organization > Home .

The organization homepage displays your organization's brand and statistics at the top of the page. The following table describes the remaining sections of the page:

Edit the Organization Branding

You can edit your organization's image and name.

Image

Follow these steps to change your organization image:

1. Open the organization homepage .
2. Click the organization image.
3. Click Choose file , select a file from your device, and then click Open .

Your organization image must be in gif , jpg , or png format and less than 1MB in size.

4. Click Save .

"Photo Uploaded" displays.

Name

Follow these steps to change your organization name:

1. Open the organization homepage .
2. Hover over the organization name and then click the pencil icon that appears.

3. Enter the new organization name and then click Save Changes .

"Organization Name Updated Successfully" displays.

View All Organizations

To view all of the organizations for which you're a member, log in to the Algorithm lab and then, in the top navigation bar, click Connected as: organizationName .

Add Organizations

Follow these steps to add new organizations to your profile:

1. Log in to the Algorithm Lab.
2. In the top navigation bar, click Connected as: organizationName .
3. In the Switch Organization panel, click Create Organization .
4. Enter the organization name and then click Add .

The organization name must be unique. "Created Successfully" displays.

Switch Organizations

Follow these steps to switch organizations:

1. Log in to the Algorithm Lab.
2. In the top navigation bar, click Connected as: organizationName .
3. In the Switch Organization panel, click the name of the organization for which you want to connect.

The top navigation bar displays the new organization name.

Set a Preferred Organization

Follow these steps to set your preferred organization:

1. Log in to the Algorithm Lab.
2. In the top navigation bar, click Connected as: organizationName .
3. In the Switch Organization panel, select the radio button under the Preferred column that corresponds to the organization that you want to set as the preferred organization.

"Preferred organization selected" displays. Refresh the page to connect as your preferred organization.

Organizations > Billing

Introduction

The owner of an organization is responsible for the billing, but the responsibility can be delegated in Trading Firm or Institution organizations. Your organization's billing information is never saved by QuantConnect. It’s passed to the Stripe billing system. If you cancel your subscription, your live trading nodes stop running. So, for user safety, your subscriptions automatically renew each month.

View Billing Information

The Billing page displays your organization's billing details. To view the page, log into the Algorithm Lab and then, in the left navigation bar, click Organization > Billing .

The Billing page displays the billing cost, date, and frequency at the top of the page. The following table describes the remaining sections of the page:

Edit Billing Details

Follow these steps to edit your organization's billing details:

1. Open the Billing page.
2. In the Details section, click Edit .
3. Enter the new billing details and then click Save .

The Details section displays the new billing details.

Edit the Credit Card

You can add, replace, and remove the organization's credit card.

Add

Follow these steps to add a credit card:

1. Open the Billing page.
2. Click Add Card .
3. Enter the credit card details and then click Save .

The Credit Card section displays the last 4 digits of your credit card.

Replace

Follow these steps to change the credit card:

1. Open the Billing page.
2. In the Credit Card section, click Edit .
3. Enter the new credit card details and then click Save .

The Credit Card section displays the last 4 digits of your new credit card.

Remove

Follow these steps to remove the credit card:

1. Open the Billing page.
2. Click Remove .
3. Click OK .

The Credit Card section displays "No entries found".

Download Invoices and Receipts

Follow these steps to download invoices and receipts:

1. Open the Billing page.
2. Scroll down to the Invoices section and then click Download as PDF next to the invoice or receipt that you want to download.
3. Click Download invoice or Download receipt .

A prompt to download the file to your local machine displays.

Change Organization Tiers

You can change your organization to any of the paid tiers or the Free tier.

Paid Tiers

Follow these steps to change to a paid organization tier:

1. Log in to the Algorithm Lab.
2. In the left navigation bar, click Organization > Home .
3. On the organization homepage, click Edit Plan .
4. Click the Choose a Plan tab.
5. Click CHOOSE TIER under the organization tier you want.
6. Select a tier pack.

The following table describes the type of packs we have available:

Pack Type	Description
Suggested Packs	Packs with pre-selected team seats, support seats, and nodes.
Build Your Own Pack	Packs with custom selections for team seats, support seats, add-ons, and market subscriptions.

7. Select monthly or annual billing.
   
8. (Optional) Click + Add Coupon and then enter your coupon code.
   
9. If your organization doesn't have a credit card added, click Proceed to Checkout and then enter your credit card details.
10. Click Update Subscriptions or Subscribe Now .

Free Tier

Follow these steps to downgrade to the Free tier:

1. Log in to the Algorithm Lab.
2. In the left navigation bar, click Organization > Home .
3. On the organization homepage, click Downgrade to Free .
4. Select the I understand that my subscription will be terminated immediately check box and then click Continue .
5. Select the reason for downgrading and then click Downgrade .

Organizations > Credit

Introduction

We created QuantConnect Credit (QCC) to enable micropayments on QuantConnect. You can use QCC to optimize parameters, download datasets, gift to members in the forum, and apply to your organization's monthly invoice. You can purchase QCC in the Algorithm Lab at a rate of 1 QCC = $0.01 USD. Since QCC is owned by organizations instead of members, all of the members within your organization have the ability to spend the QCC balance.

Optimizing Parameters

You need QCC in your organization to unlock parameter optimization . Parameter optimization jobs use optimization nodes, which are rented on a time basis. Therefore, the longer it takes to run all of the backtests in your optimization job, the more QCC it costs. Before you run optimizations, we estimate on how much QCC it will cost to run the job, but the final cost can differ from our estimates because we can't know exactly how long all of the backtests will take to run ahead of time. For instructions on optimizing parameters, see Launch Optimization Jobs .

Downloading Datasets

You can spend some QCC to download datasets from the Dataset Market to your local machine. The cost of downloading depends on the dataset and it's calculated on a per-file or per-day basis. For instructions on downloading datasets, see Licensing .

Giving to Others

To show your appreciation for contributions in the forum, give some QuantConnect Credit (QCC) rewards . The following table shows the available QCC rewards:

Award	Description	Cost (QCC)
Silver Award	A simple token of recognition from one quant to another. Keep up the great work.	80
Gold Award	This is some great work! Gold star!	600
Platinum Award	Highly resistant to oxidation, this award is for those contributions which will stand the test of time. Strong, classic, and useful for most high technology products.	1,200
Medal for Excellence	The QuantConnect Medal for Excellence is awarded by a member of the QuantConnect staff for exceptional contributions to the QuantConnect community.	3,000
Plutonium Award	Nuclear hot! This post is incredible and deserves recognition as such. Show the author your appreciation for their work.	2,000
Docs Shakespeare	You've left a mark by a contribution to the documentation for the community. Your edits and examples will be followed for generations to come.	500
Nobel Laureate	Bestowed in recognition of quantitative advances.	80
Spaghetti Code Award	Following the intricate flows of code noodle, this code compiles and runs.	300
Jedi Quant	Quant promise you show. Your code channel the force into. Hmmmmmm.	200
Live Trader	That looks like a wild ride.	50
Today I Learned	Thank you for upgrading my brain.	50
Machine Unlearning	I plan on letting the computers do all the work for me.	150
Totally Overfit	I see parameters everywhere.	80
Mind Blown Award	Something incredibly amazing, mind-boggling, and you're shocked senseless.	80
Research Rembrandt	A Jupyter notebook work of art, pulling together all the right hues and plots to be a true masterpiece.	100
Cayman Island Award	Let's get a boat and start a fund together. Did I mention the boat?	800
Printing Money Award	Awarded to profitable algorithms.	100
Stronger Together Award	We're stronger together. Let's make this happen!	120
Appreciate the Support Award	Quant trading is a hard road, we could all use a hand.	250
Master Craftsman	You're a master craftsman, taking raw materials and molding them into works of art for the good of the world.	600

Purchase QCC

Follow these steps to purchase QuantConnect Credit (QCC):

1. Open the Billing page.
2. Scroll down to the Organization Credit (QCC) section and then click Purchase Credit .
3. Select a credit pack and then click Continue .
4. If your preferred organization has a credit card and you want to charge that card, click Purchase .
5. If your preferred organization doesn't have a credit card, enter the credit card details and then click Purchase .

Only the preferred organization can be charged when purchasing QCC. If you want to charge a different organization you are a member of, set it as your preferred organization .

Apply QCC to Invoices

You can apply QCC to your organization's invoices to pay for your subscriptions, but you must enable invoice payments before your invoice is generated to pay it with QCC.

Follow these steps to enable invoice payment with QCC:

1. Open the Billing page.
2. In the Organization Credit (QCC) section, select the Automatically apply excess monthly QCC credit to my QuantConnect invoices check box.

"Credit Preferences Updated Successfully" displays.

Organizations > Training

Introduction

Onboard new team members to your organization through the content in the Learning Center . The Learning Center enables you to systematically track and monitor the progress of your team members on the courses you purchase or create. If you purchase or create a course, you can access it from the Organization > Resources page in the Algorithm Lab.

Paid Courses

Currently, there are only free tutorials in the Learning Center, but we expect to expand the paid course offerings through 2023. We charge for paid courses based on the number of members in your organization. For example, if there are 5 team members in your organization, multiply the listed price of a course by 5. When you purchase a course, the team members in your organization have lifetime access to the course.

Private Courses

Private courses are not for sale in the Learning Center. You can upload private courses to your Organization > Resources page, but they will not be available for other organizations to purchase. Create private courses to help onboard your team members while using the familiar Learning Center environment. Since the Learning Center has built-in tools to help you monitor your team members, you can track the progress of your team members as they work on your internal private courses.

This feature is designed for Institutional clients with large teams of quants on QuantConnect

Learning Center

Learning Center > Training

Introduction

The Learning Center is a coding environment to learn quantitative trading using LEAN. The Learning Center features a collection of courses from educators from the QuantConnect team and the community. The goal of the Learning Center is to give you an understanding of robust algorithm design and the tools you need to implement your own trading strategies. As you work through the courses, you’ll manage a portfolio, use indicators in technical trading strategies, trade on universes of assets, automate trades based on market behavior, and understand how data moves through your algorithm. After you've completed a course, you can keep the code to perform further research and deploy to live trading. Start learning today because you need to complete 30% of the Bootcamp lessons to post in the community forum.

Onboard new team members to your organization through the content in the Learning Center. The Learning Center enables you to systematically track and monitor the progress of your team members on the courses that you purchase or create. If you purchase or create a course, you can access it from the Organization > Resources page in the Algorithm Lab.

Articles

QuantConnect maintains collections of related tutorials we call a Learning Series . We have tutorial series covering the topics below - each with a set of articles or tutorials:

The Strategy Library is a collection of tutorials written by the QuantConnect team and community members. Review these tutorials to learn about trading strategies found in the academic literature and how to implement them with QuantConnect/LEAN.

Introduces basic Python functionality in the context of quantitative finance.

Introduces Options to those who are Option novices and have basic knowledge of applied mathematics, statistics, and financial markets.

Simple Options trading algorithms on QuantConnect for those who already have basic knowledge of Options markets.

Paid Courses

Currently, there are only free tutorials in the Learning Center, but we expect to expand the paid course offerings through 2023. We charge for paid courses based on the number of members in your organization. For example, if there are 5 team members in your organization, multiply the listed price of a course by 5. When you purchase a course, the team members in your organization have lifetime access to the course.

Private Courses

Private courses are not for sale in the Learning Center. You can upload private courses to your Organization > Resources page, but they will not be available for other organizations to purchase. Create private courses to help onboard your team members while using the familiar Learning Center environment. Since the Learning Center has built-in tools to help you monitor your team members, you can track the progress of your team members as they work on your internal private courses.

This feature is designed for Institutional clients with large teams of quants on QuantConnect

View All Courses

The Available Courses page displays all of the courses in the Learning Center. To view the page, open the Algorithm Lab and then, in the left navigation bar, click Learning Center > All Courses .

Each course displays the following information:

• Name
• Description
• Author
• Price
• Review summary
• The number of students

Click a course to learn more about it, including the following:

• Instructor biography
• Requirements
• Syllabus
• Reviews

Enroll in Courses

Follow these steps to enroll in Learning Center courses:

1. Log in to the Algorithm Lab.
2. In the left navigation bar, click Learning Center > All Courses .
3. On the Available Courses page, click the course in which you want to enroll.
4. Click Enroll .

The Learning Center environment displays.

Navigate the Course IDE

The course IDE automatically displays when you enroll in a course.

Follow these steps to navigate the course IDE:

1. Read the instructions in the left panel.
2. Update the main.py file with your answer.
3. (Optional) Scroll down to the bottom of the instruction panel and click Show Hint to show a hint.

A hint displays at the bottom of the instruction panel.

4. (Optional) Scroll down to the bottom of the instruction panel and click Solution to show the solution file.

A solution.py file displays.

5. (Optional) Click Reset to reset the main.py file.
6. Click Submit to check your answer.

The Chart panel displays your backtest results.

7. If an error message displays, restart from step 2.
8. Click Continue .

View Course Progress

Follow these steps to view your course progress:

1. Log in to the Algorithm Lab.
2. In the left navigation bar, click Learning Center > All Courses .
3. On the Available Courses page, click the course for which you want to see your progress.

On the course page, the About this Course section displays your progress.

View Completed Courses

Log in to the Algorithm Lab and then, in the left navigation bar, click Learning Center > Completed to view your completed courses.

Submit Reviews

You need to complete a course before you can submit a review on it.

Follow these steps to review courses:

1. Open the Completed Courses page.
2. Click the course for which you want to submit a review.
3. Scroll down to the User Reviews section and then click the number of stars you want to give the course in your review.
4. Write your review.
5. Click Submit Review .

The User Reviews section displays your review.

Report Errors

To report errors you experience with courses, email us an explanation of the error and the task URL where the error occurred.

Learning Center > Educators

Introduction

Educators are QuantConnect experts who contribute courses to the Learning Center. We are always looking for experts to become Educators and share their insight with the community. As an Educator, you create the description, requirements, and lessons of each course you contribute. You also provide the images for the course listing in the Learning Center. As students complete your course, you'll receive course reviews so you can improve your course material.

Registration

Anyone can register to become an Educator. We are looking for Educators that specialize in the following areas:

• Quant finance
• HTML, CSS, and Javascript
• C# and Python
• Jupyter

If you have the skills listed above, contact us to start the registration process.

Compensation

Educators are compensated in knowledge, commissions, and exposure. You earn a $5,000 commission per accepted course and a 70% revenue share for your courses. When your courses are listed in the Learning Center, your name and social media accounts are public, giving you exposure to the QuantConnect community.

Learning Center > Course Structure

Introduction

The courses in the Learning Center are structured in a way so you can complete courses at your own pace. The course structure enables you to improve your skills in finance, statistics, and software development while learning the QuantConnect API in easily digestible portions. The idea behind the course lessons is to focus on implementing individual strategies rather than learning just the theory.

Lessons

Courses are broken up into multiple lessons. Lessons are made up of videos, readings, and coding exercises. Lessons break up the process of learning into digestible tasks. Each lesson builds on an understanding of the API from the lesson before it, so we recommend completing the lessons in order. The introductory video of each lesson demonstrates the process of completing the tasks in the lesson before you implement them yourself.

Tasks

Lessons are broken up into multiple tasks to test your understanding of the course topic. Each task is accompanied by text instruction to guide you to complete the task. The Learning Center environment, where you complete each task, is similar to the regular web IDE used for backtesting and live trading. After you read the task instructions and run your solution algorithm, you are informed if you completed the task. If you need assistance, you can view a hint or the full solution file .

Results

To check if you have completed a task correctly, backtest your algorithm in the Learning Center environment and then the result window displays your results. If you receive an error message, update the code and then run the backtest again. If you pass the task, you'll be prompted to proceed to the next task in the course. If you're having trouble completing the task, you can copy the task solution file.

Solutions

A solution file for each task is available in the Learning Center environment. You may use it, but we recommend you try to solve the problem before you check the solution file. You'll learn best by solving the problem on your own. However, errors can occur when running backtests, so you may use the solution file to ensure the environment is running without error.

Errors

If you run into an error when you are working on a task, compare your code to the solution file. The error may be caused by either an error in your submission or an error in the backend of the Learning Center environment. In cases when errors occur in the backtest of the Learning Center environment, email us the following information:

• The URL of the task.
• An explanation of the issue.
• A code snippet to reproduce the error.

Projects

Projects > Getting Started

Introduction

Projects contain files to run backtests, launch research notebooks, perform parameter optimizations, and deploy live trading strategies. You need to create projects in order to create strategies and share your work with other members. Projects enable you to generate institutional-grade reports on the performance of your backtests. You can create your projects from scratch or you can utilize pre-built libraries and third-party packages to expedite your development process.

The Algorithm lab enables you to create, store, and manage your projects in the cloud. You can only access your own projects unless you share them with others, or add collaborators.

View All Projects

The All Projects page displays all of your QuantConnect projects in the organization, including libraries and Boot Camp lessons.

Click a project or directory on the page to open it.

Follow these steps to view the page:

1. Log in to the Algorithm Lab.
2. In the left navigation bar, click Projects .
3. Click Open Project .

Create Projects

Follow these steps to create new projects:

1. Log in to the Algorithm Lab.
2. In the left navigation bar, click Projects .
3. On the Projects page, click Create New Algorithm .

The web IDE displays an empty project.

Close Projects

In the Project panel, click Close to close projects.

Clone Projects

Clone a project to create a new copy of the project and save it within the same organization. When you clone a project, the project files are duplicated but the backtest results are not retained. Cloning enables you to test small changes in your projects before merging the changes back into the original project.

To clone a project, open the project and then, in the Project panel, click Clone .

Migrate Projects

Migrating moves a project from one organization to another. You must be the organization administrator to migrate projects out of the organization. Migrate a project to run the project using resources from a different organization and to collaborate on the project with members from a different organization. When you migrate projects, the project files are copied but the content stored in the ObjectStore is not retained.

To migrate a project, open the project and then, in the Project panel, click Migrate .

Rename Projects

Follow these steps to rename a project:

1. Open the project .
2. In the Project panel, hover over the project name and then click the pencil icon that appears.

3. In the Name field, enter the new project name and then click Save Changes .

The project name must only contain - , _ , letters, numbers, and spaces. The project name can't start with a space or be any of the following reserved names: CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, or LPT9.

Create Project Directories

Set the name of a project to directoryName / projectName to create a project directory.

Set Descriptions

Follow these steps to set the project description:

1. Open the project .
2. In the Project panel, hover over the project name and then click the pencil icon that appears.

3. In the Description field, enter the new project description and then click Save Changes .

Edit Parameters

Algorithm parameters are hard-coded values for variables in your project that are set outside of the code files. Add parameters to your projects to remove hard-coded values from your code files and to perform parameter optimizations. You can add parameters, set default parameter values, and remove parameters from your projects.

Add Parameters

Follow these steps to add an algorithm parameter to a project:

1. Open the project .
2. In the Project panel, click Add New Parameter .
3. Enter the parameter name.

The parameter name must be unique in the project.

4. Enter the default value.
5. Click Create Parameter .

To get the parameter values into your algorithm, see Get Parameters .

Set Default Parameter Values

Follow these steps to set the default value of an algorithm parameter in a project:

1. Open the project .
2. In the Project panel, hover over the algorithm parameter and then click the pencil icon that appears.

3. Enter a default value for the parameter and then click Save .

The Project panel displays the default parameter value next to the parameter name.

Delete Parameters

Follow these steps to delete an algorithm parameter in a project:

1. Open the project .
2. In the Project panel, hover over the algorithm parameter and then click the trash can icon that appears.

3. Remove the GetParameter calls that were associated with the parameter from your code files.

Delete Projects

You can delete a project when it is open or closed.

Delete Open Projects

In the Project panel, click Delete , and then click Yes to delete the project.

Delete Closed Projects

Follow these steps to delete the project:

1. Open the My Projects page.
2. If the project is in a directory, click the directory files to navigate to the project file.
3. Hover over the project file and then click the trash can icon that appears.


"Project deleted" displays.

Projects > Structure

Introduction

Projects organize your algorithm data. They have settings, files, results, and attached libraries.

Your account has a directory to organize the projects that you have access to in each of your organizations. If you switch the organization that you are connected as , your directory of projects is updated to reflect the projects that you have access to within the new organization.

Files

New projects contain code files ( .py or .cs ) and notebook files ( .ipynb ). Run backtests with code files and launch the Research Environment with notebook files. Code files must stay within your size quotas . To keep files small, files can import code from other code files. To aid navigation, you can rename, move, and delete files in the web IDE. Notebook files save the input cells, but not the output cells.

Directories

Your directory of projects can contain nested directories of projects to make navigation easier. Similarly, the code and notebook files in your projects can contain nested directories of files. For example, if you have multiple Alpha models in your strategy, you can create an alphas directory in your project to hold a file for each Alpha model.

Description

You can give a project a description to provide a high-level overview of the project and its functionality. Descriptions make it easier to return to old projects and understand what is going on at a high level without having to look at the code. The project description is also displayed at the top of backtest reports , which you can create after your backtest completes.

Libraries

Libraries are reusable code files that you can import into any project for use in backtesting, research, and live trading. Use libraries to increase your development speed and save yourself from copy-pasting between projects. You can create libraries and add them to your projects using the web IDE. Your libraries are saved under the Library directory in the Algorithm Lab.

Parameters

Algorithm parameters are hard-coded values for variables in your project that are set outside of the code files. Add parameters to your projects to remove hard-coded values from your code files and to perform parameter optimizations . To get the parameter values into your algorithm, see Get Parameters . The parameter values are sent to your algorithm when you deploy the algorithm, so it's not possible to change the parameter values while the algorithm runs.

Projects > Files

Introduction

The files in your projects enable you to implement trading algorithms, perform research, and store important information. Python projects start with a main.py and a research.ipynb file. C# projects start with a Main.cs and a Research.ipynb file. Use the main.py or Main.cs file to implement trading algorithms and use the ipynb file to access the Research Environment.

Supported File Types

The IDE supports .cs , .ipynb , and .py files.

Add Files

Follow these steps to add a file to a project:

1. Open the project .
2. In the right navigation menu, click the Explorer icon.
3. In the Explorer panel, expand the Workspace (Workspace) section.
4. Click the New File icon.
5. Enter a file name and extension.
6. Press Enter .

Add Directories

Follow these steps to add a directory to a project:

1. Open the project .
2. In the right navigation menu, click the Explorer icon.
3. In the Explorer panel, expand the Workspace (Workspace) section.
4. Click the New Directory icon.
5. Enter a directory name and then press Enter .

Open Files

Follow these steps to open a file in a project:

1. Open the project .
2. In the right navigation menu, click the Explorer icon.
3. In the Explorer panel, click the file you want to open.

Close Files

To close a file, at the top of the IDE, click the x button on the file tab you want to close.

To close all of the files in a project, at the top of the IDE, right-click one of the file tabs and then click Close All .

Rename Files and Directories

Follow these steps to rename a file or directory in a project:

1. Open the project .
2. In the right navigation menu, click the Explorer icon.
3. In the Explorer panel, right-click the file or directory you want to rename and then click Rename .
4. Enter the new name and then press Enter .

Delete Files and Directories

Follow these steps to delete a file or directory in a project:

1. Open the project .
2. In the right navigation menu, click the Explorer icon.
3. In the Explorer panel, right-click the file or directory you want to delete and then click Delete Permanently .
4. Click Delete .

Size Quotas

The maximum file size you can have in a project depends on your organization's tier. The following table shows the quota of each tier:

Projects > IDE

Introduction

The web Integrated Development Environment (IDE) lets you work on research notebooks and develop algorithms for backtesting and live trading. When you open a project , the IDE automatically displays. You can access your trading algorithms from anywhere in the world with just an internet connection and a browser. If you prefer to use a different IDE, the CLI allows you to develop locally in your preferred IDE.

Supported Languages

The Lean engine supports C# and Python. Python is less verbose, has more third-party libraries, and is more popular among the QuantConnect community than C#. C# is faster than Python and it's easier to contribute to Lean if you have features written in C# modules. Python is also the native language for the research notebooks, so it's easier to use in the Research Environment.

The programming language that you have set on your account determines how autocomplete and IntelliSense are verified and determines the types of files that are included in your new projects. If you have Python set as your programming language, new projects will have .py files. If you have C# set as your programming language, new projects will have .cs files.

Change Languages

Follow these steps to select a programming language:

1. Log in to the Algorithm Lab.
2. In the top navigation bar, click yourUsername > My Account .
3. On your Account page, in the Account Settings section, click C# or Python .

"Preferred language setting has been updated" displays.

Autocomplete and Intellisense

Intellisense is a GUI tool in your code files that shows auto-completion options and presents the members that are accessible from the current object. The tool works by searching for the statement that you're typing, given the context. You can use Intellisense to auto-complete method names and object attributes. When you use it, a pop-up displays in the IDE with the following information:

• Member type
• Member description
• The parameters that the method accepts (if the member is a method)

Use Intellisense to speed up your algorithm development. It works with all of the default class members in Lean, but it doesn't currently support class names or user-defined objects.

Use Autocomplete

Follow these steps to use autocomplete:

1. Open a project .
2. Type the first few characters of a variable, function, class, or class member that you want to autocomplete (for example, self.Set Set or SimpleMovingAverage.Upda ).
3. Press CTRL+Space .

If there are class members that match the characters you provided, a list of class members displays.


4. Select the class member that you want to autocomplete.

The rest of the class member name is automatically written in the code file.

Cloud Terminal

The terminal panel at the bottom of the IDE shows API messages, errors, and the logs from your algorithms.

The Problems tab of the panel highlights the coding errors in your algorithms.

Manage Nodes

The Resources panel shows the cloud backtesting, research, and live trading nodes within your organization.

To view the Resources panel, open a project and then, in the right navigation menu, click the Resources icon.

The panel displays the following information for each node:

To stop a running node, click the stop button next to it. You can stop nodes that you are using, but you need stop node permissions to stop nodes other members are using.

By default, we select the best node available in your clusters when you launch a backtest or research notebook. To use a specific node, click the check box next to a node in the panel.

Navigate the File Outline

The Outline section in the Explorer panel is an easy way to navigate your files. The section shows the name of classes, members, and functions defined throughout the file. Click one of the names to jump your cursor to the respective definition in the file. To view the Outline , open a project and then, in the right navigation menu, click the Explorer icon.

Split the Editor

The editor can split horizontally and vertically to display multiple files at once. Follow these steps to split the editor:

1. Open a project .
2. In the right navigation bar, click the Explorer icon.
3. In the QC (Workspace) section, drag and drop the files you want to open.

Use this feature instead of opening multiple browser tabs for a single project. If you open open multiple browser tabs, two code sessions will be updating the same project, which will cause the code sessions to fall out of sync.

Show and Hide Code Blocks

The editor can hide and show code blocks to make navigating files easier. To hide and show code blocks, open a project and then click the arrow icon next to a line number.

Keyboard Shortcuts

Keyboard shortcuts are combinations of keys that you can issue to manipulate the IDE. They can speed up your workflow because they remove the need for you to reach for your mouse.

Follow these steps to view the keyboard shortcuts of your account:

1. Open a project .
2. Press F1 .
3. Enter "Preferences: Open Keyboard Shortcuts".
4. Click Preferences: Open Keyboard Shortcuts .

To set a key binding for a command, click the pencil icon in the left column of the keyboard shortcuts table, enter the key combination, and then press Enter .

Themes

The Algorithm Lab offers light and dark themes. Follow these steps to change themes:

1. Log in to your account.
2. In the top navigation bar, click yourUsername > My Account .
3. On your Account page, in the Account Settings section, click Light Theme or Dark Theme

Your Account page refreshes and displays the new theme.

Supported Browsers

The IDE works with Chrome, Edge, Firefox, and Safari. For more information about browser support, see Browser Support in the Visual Studio Code documentation.

Cookies

You need third-party cookies enabled on your browser to use the IDE. To enable third-party cookies, see the support page of the following browsers:

• Brave
• Chrome
• Edge
• Firefox
• Safari

Troubleshooting

If you experience issues trying to load the IDE, follow these steps:

1. Check if you're using one of the supported browsers .
2. Test a different supported browser.
3. Enable cookies .
4. Disable your browser add-ons.
5. Check your anti-virus settings.

The internet protection of some anti-virus products block the "Service Workers" that the IDE needs to operate. Kaspersky and Avast are the two products that commonly block the IDE from using Service Workers. These are background threads that improve the IDE's experience.

6. Configure your network settings to use Google Public DNS .

The DNS settings of some ISPs block Microsoft DNS, so some panels don't load and display the following message: "Server IP address could not be found".

The following resources explain how to change your networks settings:

• Firefox DNS-over-HTTPS
• DNS Encryption with DNS over HTTPs (DoH) on Chrome
• Microsoft Edge to have DNS over HTTPS (DoH) as the default DNS settings
• Set up 1.1.1.1 - macOS

Your browser may cache data from the old IDE.

Projects > Debugging

Introduction

Debugging is the process of systematically using a tool to find and fix errors in software. Errors can cause unintended trades, unexpected algorithm crashes, and faulty risk management logic. We use a debugging tool step through code line-by-line, and inspect the variables to understand the internal state of the program. You have many tools to debug your algorithm, including our built-in debugger, logging statements, and charting.

Coding Errors

Coding errors are errors that cause your projects to not build, throw exceptions, or behave unexpectedly. There are generally 3 types of coding errors: build, runtime, and logic errors. Each type of error occurs for different reasons.

Build Errors

Build errors occur when the interpreter's syntax check fails. An example code snippet that produces a build error is the following:

var a = 1;
if (a = 2) {}

a = 1
if a = 2:
    pass

If build errors occur in your project, you can not use the debugger, logging statements, or custom charts to debug the issue. You're notified of build errors in the following ways:

• The line where the error occurs is underlined in red.
• The Problems panel at the bottom of the IDE displays the errors.
• The Explorer panel highlights the editors, files, and outlines in red where the error occurs.

Runtime Errors

Runtime Errors, also called exceptions, occur when the interpreter’s syntax checks pass but an error occurs during execution. An example code snippet that produces a runtime error is the following:

var a = new List<int>() {1};
var b = a[1];

a = [1]
a[1]

If runtime errors occur in your project, a stack trace of the error is added to the Cloud Terminal and the log file. For example, the snippet above produces the following error message:

The stack trace from the build error identifies the line of code where the error occurs. If the error doesn't reference your project files, it's an issue with Lean or another library. To view more information about the error, click (Open Stack Trace) .

Logic Errors

Logic errors occur when your algorithm behaves in an unexpected or unintended manner. These types of errors don't halt the program execution, so they are difficult to diagnose. An example code snippet that produces a logic error is the following:

var average = x + y / 2.0; // instead of (x + y) / 2.0

average = x + y / 2 # instead of (x + y) / 2

To resolve logic errors, carefully trace your algorithm. You may use the Log and Debug methods or the built-in debugger.

Debugger

The debugger is a built-in tool to help you debug coding errors while backtesting. The debugger enables you to slow down the code execution, step through the program line-by-line, and inspect the variables to understand the internal state of the program. For more information about the backtesting debugger, see Backtest Debugging .

Logging Statements

Algorithms can record string messages ('log statements') to a file for analysis after a backtest is complete, or as a live algorithm is running. These records can assist in debugging logical flow errors in the project code. Consider adding them in the code block of an if statement to signify an error has been caught.

It's good practice to add logging statements to live algorithms so you can understand its behavior and keep records to compare against backtest results. If you don't add logging statements to a live algorithm and the algorithm doesn't trade as you expect, it's difficult to evaluate the underlying problem.

Log

Log statements are added to the log file while your algorithm continues executing. Logging dataset information is not permitted. Use Log statements to debug your backtests and live trading algorithms.

Log length is capped by organization tier . If your organization hits the daily limit, contact us .

If you log the same content multiple times, only the first instance is added to the log file. To bypass this rate-limit, add a timestamp to your log messages.

For live trading, the log files of each cloud project can store up to 100,000 lines for up to one year. If you log more than 100,000 lines or some lines become older than one year, we remove the oldest lines in the files so your project stays within the quota.

To record the algorithm state when the algorithm stops executing, add log statements to the OnEndOfAlgorithm event handler.

Log("My log message");

self.Log("My log message")

Debug

Debug statements are the same as log statements, but Debug statements are orange in the Cloud Terminal. Use these statements when you want to give more attention to a message in the Cloud Terminal. Debug messages can be up to 200 characters in length. If you send multiple debug statements within 1 second, your messages are rate-limited to avoid crashing your browser.

Debug("My debug message");

self.Debug("My debug message")

Error

Error statements are the same as log statements, but Error statements are displayed in red text in the Cloud Terminal. Use these statements when you want to give the most attention to a message in the Cloud Terminal. Error statements are rate-limited like debug statements.

Error("My error message");

self.Error("My error message")

Quit

Quit statements cause your project to stop running and may log some data to the log file and Cloud Terminal. These statements are orange in the Cloud Terminal. When you call the Quit method, the program continues executing until the end of the method definition. If you want to quit execution immediately, return after you call Quit .

Quit("My quit message");

self.Quit("My quit message")

Charting

You can use the IDE charting capabilities to plot values over time when debugging. To add data points to a custom chart, call the Plot method with a chart name, series name, and value. For a full example, see Charting .

Plot(chart, series, value);

self.Plot(chart, series, value)

If you run your algorithm in QuantConnect Cloud, we limit the number of points a chart can have to 4,000 because intensive charting generates hundreds of megabytes (200MB) of data, which is too much to stream online or display in a web browser. If you exceed the limit, the following error message is thrown:

Projects > Collaboration

Introduction

Project collaboration is a real-time coding experience with other members of your team. Collaborating can speed up your development time. By working with other members in an organization, members within the organization can specialize in different parts of the project.

Video Demo

When there are multiple people working on the same project, the cursor of each member is visible in the IDE and all file changes occur in real-time for everyone. The following video demonstrates the collaboration feature:

Add Team Members

You need to own the project to add team members to it.

Follow these steps to add team members to a project:

1. Open the project .
2. In the Collaborate section of the Project panel, click Add Collaborator .
3. Click the Select User... field and then click a member from the drop-down menu.
4. If you want to give the member live control of the project, select the Live Control check box.
5. Click Add User .

The member you add receives an email with a link to the project.

If the project has a shared library , the collaborator can access the project, but not the library. To grant them access to the library, add them as a collaborator to the library project.

Collaborator Quotas

The number of members you can add to a project depends on your organization's tier . The following table shows the number of collaborators each tier can have per project:

Toggle Live Control

You need to have added a member to the project to toggle their live control of the project.

Follow these steps to enable and disable live control for a team member:

1. Open the project .
2. In the Collaborate section of the Project panel, click the profile image of the team member.
3. Click the Live Control check box.
4. Click Save Changes .

Remove Team Members

Follow these steps to remove a team member from a project you own:

1. Open the project .
2. In the Collaborate section of the Project panel, click the profile image of the team member.
3. Click Remove User .

To remove yourself as a collaborator from a project you don't own, delete the project .

Intellectual Property

All individuals on QuantConnect own their intellectual property (IP) on our platform. Your code is private and only accessible by people you share the project with and with support-engineers when you submit a support ticket. At no point does QuantConnect ever claim ownership of user IP. The only case where algorithm code becomes public domain is when they are shared to the forum. In this case, algorithms need to be made public domain to allow the sharing of the algorithm code.

It is common when companies hire engineers to write software, they require their employees to sign an agreement that gives the company IP ownership of any code written for work. They need this because they're paying you to write software, and the company needs to sell that software to turn a profit. Similarly, the Organizations feature allows you to control who holds IP ownership over a project. Each type of organization has its own mechanisms for handling project IP ownership.

Individual Organizations

The Free and the Quant Researcher tiers only allow single-member organizations. This means you can't collaborate with anyone else inside the QuantConnect platform. Simply put, you own the IP for any projects you work on since you are the sole collaborator.

Team Organizations

For organizations that allow multiple users to collaborate on projects, the user who created the project owns it; this can be you or one of your teammates. If you add a teammate/collaborate, they can clone it, but the original project belongs to the person who first created it.

Trading Firm & Institution Organizations

For Trading Firm and Institution organizations, which are generally used by companies and funds, the firm owns all employee projects. This is made to suit firms that wish to hire consultants and need to ensure the code remains with the company when the consultant work is finished. You have to explicitly create a project in an organization for it to be created on the organization's account.

Other Collaboration Methods

Additional methods of collaboration include cloning, sharing, and migrating projects.

Clone Projects

Clone a project to create a new copy of the project and save it within the same organization. When you clone a project, the project files are duplicated but the backtest results are not retained. Cloning enables you to test small changes in your projects before merging the changes back into the original project.

To clone projects, open the project you want to clone and then, in the Project panel, click Clone . "Project cloned successfully" displays.

Share Projects

Run a backtest and then make the backtest results public to share a project. Once a backtest is made public, a link is generated for you that opens the backtest results and the project files. You can directly give the link to others, attach the backtest to a forum discussion, or embed the backtest into a website. However, note that when you make a backtest public, the project files are accessible to anyone who visits the link, even after you delete the project. As a result, we don't recommend collaborating on projects by making backtests public and sharing the link with your collaborators. Instead, add team members to your project since it protects your intellectual property.

You can share a backtest at any time when it's executing. Although, if you generate a link to share the backtest before the backtest completes, the link that's generated will not contain all of the backtest results. Some reasons to share your project include the following:

• Attach the project to the forum to ask for help, gather feedback, or report an issue.
• Attach the project to a data issue to reduce the amount of time it takes to fix the data issue.
• Share a link to the project with others to give them a copy of the project files and the backtest results.

To share a research notebook, save the notebook and run a backtest.

Migrate Projects

Migrating moves a project from one organization to another. You must be the organization administrator to migrate projects out of the organization. Migrate a project to run the project using resources from a different organization and to collaborate on the project with members from a different organization. When you migrate projects, the project files are copied but the content stored in the ObjectStore is not retained.

Follow these steps to migrate projects:

1. Open the project you want to migrate.
2. In the Project panel, click Migrate .
3. Click the name of the organization to which you want to migrate the project and then click Migrate .

The top navigation bar displays Connected as: theOrganizationYouMigratedTo .

Projects > Code Sessions

Introduction

Code sessions let you access a cloud hosted IDE to research and develop trading algorithms. When you open a project, a new code session starts running with the latest master branch of the LEAN trading engine. The session is ready to go with access to the full QuantConnect data library and the cloud resources of the QuantConnect technology stack.

View Code Sessions

The Projects page displays all of your running code sessions in your current organization. To view the page, log in to the Algorithm Lab and then, in the left navigation menu, click Projects .

To open one of the code sessions, click the project name.

To stop the code sessions, click the stop icon next to a project name. If you log out, the code sessions don't automatically stop.

The left navigation bar of the Algorithm Lab also shows the running code sessions underneath Projects . The blue code session represents the session that's currently open. The gray code sessions represent the sessions that are currently minimized.

Code Session Quotas

If you have a project open, it uses a coding session. Paid organizations can have multiple active coding sessions, but free users can only have one coding session open at a time. The following table shows how many active coding sessions you can have on each organization tier:

If the organization you're in has more live trading nodes than your initial coding session quota, then your coding session quota increases to the number of live trading nodes you have in the organization so you can view all your live strategies.

The quota for free organizations is a global quota, so you can have one active coding session across all of your free organizations. The quotas for paid organizations are at the organization level. Therefore, if you are in two Quant Researcher organizations, you can have two active coding sessions in one of those organizations and another two active sessions in the other organization. These paid tier quotas are for each account, not for the organization as a whole. For instance, a Trading Firm organization can have more than eight members and all of the members can simultaneously work on projects within the organization.

Projects > Shared Libraries

Introduction

Project libraries are QuantConnect projects you can merge into your project to avoid duplicating code files. If you have tools that you use across several projects, create a library.

Create Libraries

Follow these steps to create a library:

1. Create a new project .
2. In the project panel, click Add Library .
3. Click Create New .
4. In the Input Library Name field, enter a name for the library (e.g. Calculators ).
5. Click Create Library .

The template library files are added to your project. View the files in the Explorer panel.

6. In the right navigation menu, click the Explorer icon.
7. In Explorer panel, open the Library.py Library.cs file, rename it to reflect its purpose (e.g.: TaxesCalculator.py TaxesCalculator.cs ), and implement your library.

Add Libraries

Follow these steps to add a library to your project:

1. Open the project .
2. In the Project panel, click Add Library .
3. Click the Choose a library... field and then click a library from the drop-down menu.
4. Click Add Library (e.g. Calculators ).

The library files are added to your project. To view the files, in the right navigation menu, click the Explorer icon.

5. Import the library into your project to use the library.

using Calculators;
namespace QuantConnect.Algorithm.CSharp
{
    public class AddLibraryAlgorithm : QCAlgorithm
    {
        private TaxesCalculator _taxesCalculator = new();
    }
}

from Calculators.TaxesCalculator import TaxesCalculator
class AddLibraryAlgorithm(QCAlgorithm):
    taxes_calculator = TaxesCalculator()

Rename Libraries

To rename a library, open the library project file and then rename the project .

Remove Libraries

Follow these steps to remove a library from your project:

1. Open the project that contains the library you want to remove.
2. In the Project panel, hover over the library name and then click the trash can icon that appears.


The library files are removed from your project.

Delete Libraries

To delete a library, delete the library project file .

Projects > Package Environments

Introduction

Libraries (or packages) are third-party software that you can use in your projects. You can use many of the available open-source libraries to complement the classes and methods that you create. Libraries reduce your development time because it's faster to use a pre-built, open-source library than to write the functionality. Libraries can be used in backtesting, research, and live trading. The environments support various libraries for machine learning, plotting, and data processing. As members often request new libraries, we frequently add new libraries to the underlying docker image that runs the Lean engine.

This feature is primarily for Python algorithms as not all Python libraries are compatible with each other. We've bundled together different sets of libraries into distinct environments. To use the libraries of an environment, set the environment in your project and add the relevant using import statement of a library at the top of your file.

Set Environment

Follow these steps to set the library environment:

1. Open a project .
2. In the Project panel, click the Python Foundation field and then select an environment from the drop-down menu.

Default Environment

The default environment supports the following libraries:

# Name                        Version
absl-py                       1.4.0
adagio                        0.2.4
aesara                        2.8.12
aiodns                        3.0.0
aiohttp                       3.8.4
aiohttp-cors                  0.7.0
aiosignal                     1.3.1
alabaster                     0.7.13
ale-py                        0.7.4
alembic                       1.10.3
alpaca-trade-api              0.26
alphalens-reloaded            0.4.3
altair                        4.2.2
ansi2html                     1.8.0
antlr4-python3-runtime        4.11.1
anyio                         3.6.2
appdirs                       1.4.4
arch                          5.3.1
argon2-cffi                   21.3.0
argon2-cffi-bindings          21.2.0
arviz                         0.15.1
astropy                       5.2.1
asttokens                     2.2.1
astunparse                    1.6.3
async-timeout                 4.0.2
asyncio-nats-client           0.11.5
attrs                         23.1.0
autograd                      1.5
autokeras                     1.1.0
autoray                       0.6.3
AutoROM                       0.4.2
AutoROM.accept-rom-license    0.6.1
ax-platform                   0.3.0
Babel                         2.12.1
backcall                      0.2.0
bayesian-optimization         1.4.2
beautifulsoup4                4.11.2
bleach                        6.0.0
blessed                       1.20.0
blis                          0.7.9
blosc2                        2.0.0
bokeh                         2.4.3
boltons                       23.0.0
botorch                       0.8.2
Bottleneck                    1.3.7
brotlipy                      0.7.0
cachetools                    5.3.0
captum                        0.6.0
catalogue                     2.0.8
catboost                      1.1.1
category-encoders             2.6.0
ccxt                          3.0.72
certifi                       2022.12.7
cffi                          1.15.1
chardet                       5.1.0
charset-normalizer            2.0.4
check-shapes                  1.0.0
click                         7.1.2
clikit                        0.6.2
cloudpickle                   2.2.1
cmaes                         0.9.1
cmdstanpy                     1.1.0
colorama                      0.4.6
colorcet                      3.0.1
colorful                      0.5.5
colorlog                      6.7.0
colorlover                    0.3.0
colour                        0.1.5
comm                          0.1.3
commonmark                    0.9.1
conda                         23.3.1
conda-content-trust           0.1.3
conda-package-handling        2.0.2
conda_package_streaming       0.7.0
confection                    0.0.4
cons                          0.4.5
contourpy                     1.0.7
convertdate                   2.4.0
copulae                       0.7.7
copulas                       0.8.0
cramjam                       2.6.2
crashtest                     0.3.1
creme                         0.6.1
cryptography                  38.0.4
cufflinks                     0.17.3
cvxopt                        1.3.0
cvxpy                         1.3.0
cycler                        0.11.0
cymem                         2.0.7
Cython                        0.29.33
darts                         0.23.1
dash                          2.9.3
dash-core-components          2.0.0
dash-cytoscape                0.3.0
dash-html-components          2.0.0
dash-table                    5.0.0
dask                          2023.4.0
deap                          1.3.3
debugpy                       1.5.1
decorator                     5.1.1
defusedxml                    0.7.1
Deprecated                    1.2.13
dgl                           1.0.1
dill                          0.3.6
dimod                         0.12.3
diskcache                     5.6.1
distlib                       0.3.6
distributed                   2021.4.1
dm-tree                       0.1.8
docutils                      0.19
DoubleML                      0.5.2
dtreeviz                      2.2.1
dtw-python                    1.3.0
dwave-cloud-client            0.10.3
dwave-drivers                 0.4.4
dwave-greedy                  0.3.0
dwave-hybrid                  0.6.9
dwave-inspector               0.3.0
dwave-inspectorapp            0.3.0
dwave-neal                    0.6.0
dwave-networkx                0.8.12
dwave-ocean-sdk               6.1.1
dwave-preprocessing           0.5.3
dwave-samplers                1.0.0
dwave-system                  1.18.0
dwave-tabu                    0.5.0
dwavebinarycsp                0.2.0
dx                            0.1.22
ecos                          2.0.12
EMD-signal                    1.4.0
empyrical                     0.5.5
empyrical-reloaded            0.5.9
en-core-web-md                3.5.0
en-core-web-sm                3.5.0
entrypoints                   0.4
ephem                         4.1.4
et-xmlfile                    1.1.0
etuples                       0.3.8
exceptiongroup                1.1.1
exchange-calendars            4.2.6
executing                     1.2.0
ezyrb                         1.3.0.post2304
fastai                        2.7.11
fastai2                       0.0.30
fastcore                      1.5.29
fastdownload                  0.0.7
fasteners                     0.18
fastjsonschema                2.16.3
fastparquet                   2023.2.0
fastprogress                  1.0.3
fasttext                      0.9.2
featuretools                  0.23.1
filelock                      3.12.0
findiff                       0.9.2
finrl                         0.3.1
FixedEffectModel              0.0.5
Flask                         2.0.3
flatbuffers                   23.3.3
fonttools                     4.39.3
fracdiff                      0.9.0
frozendict                    2.3.7
frozenlist                    1.3.3
fs                            2.4.16
fsspec                        2023.4.0
fst-pso                       1.8.1
fugue                         0.8.3
fugue-sql-antlr               0.1.6
future                        0.18.3
fuzzy-c-means                 1.6.3
FuzzyTM                       2.0.5
gast                          0.4.0
gensim                        4.3.0
gevent                        22.10.2
gluonts                       0.12.3
google-api-core               2.11.0
google-auth                   2.17.3
google-auth-oauthlib          0.4.6
google-pasta                  0.2.0
googleapis-common-protos      1.59.0
gpflow                        2.7.0
gplearn                       0.4.2
gpustat                       1.1
GPUtil                        1.4.0
gpytorch                      1.9.1
graphviz                      0.20.1
greenlet                      2.0.2
grpcio                        1.54.0
gym                           0.21.0
Gymnasium                     0.26.3
gymnasium-notices             0.0.1
h2o                           3.40.0.1
h5netcdf                      1.1.0
h5py                          3.8.0
hijri-converter               2.2.4
hmmlearn                      0.2.8
holidays                      0.23
holoviews                     1.15.4
homebase                      1.0.1
hopcroftkarp                  1.2.5
html5lib                      1.1
httpstan                      4.9.1
hurst                         0.0.5
hvplot                        0.8.2
hyperopt                      0.2.7
idna                          3.4
iisignature                   0.24
ijson                         3.2.0.post0
imageio                       2.27.0
imagesize                     1.4.1
imbalanced-learn              0.10.1
importlib-metadata            4.13.0
importlib-resources           5.12.0
iniconfig                     2.0.0
injector                      0.20.1
interpret                     0.3.0
interpret-core                0.3.2
ipykernel                     6.22.0
ipython                       8.12.0
ipython-genutils              0.2.0
ipywidgets                    8.0.4
itsdangerous                  2.1.2
jax                           0.4.4
jaxlib                        0.4.4
jedi                          0.18.2
Jinja2                        3.1.2
joblib                        1.2.0
jqdatasdk                     1.8.11
json5                         0.9.11
jsonpatch                     1.32
jsonpointer                   2.0
jsonschema                    4.17.3
jupyter                       1.0.0
jupyter-bokeh                 3.0.5
jupyter-console               6.6.3
jupyter-dash                  0.4.2
jupyter-resource-usage        0.7.2
jupyter-server                1.24.0
jupyter_client                8.2.0
jupyter_core                  5.3.0
jupyterlab                    3.4.4
jupyterlab-pygments           0.2.2
jupyterlab-widgets            3.0.7
jupyterlab_server             2.22.1
keract                        4.5.1
keras                         2.11.0
keras-nlp                     0.4.1
keras-rl                      0.4.2
keras-tuner                   1.3.5
kiwisolver                    1.4.4
kmapper                       2.0.1
korean-lunar-calendar         0.3.1
kt-legacy                     1.0.5
langcodes                     3.3.0
lark                          1.1.5
lazy_loader                   0.2
lazypredict                   0.2.12
libclang                      16.0.0
lightgbm                      3.3.5
lime                          0.2.0.1
line-profiler                 4.0.2
linear-operator               0.3.0
littleutils                   0.2.2
livelossplot                  0.5.5
llvmlite                      0.39.1
locket                        1.0.0
logical-unification           0.4.5
LunarCalendar                 0.0.9
lxml                          4.9.2
lz4                           4.3.2
Mako                          1.2.4
Markdown                      3.4.3
MarkupSafe                    2.1.2
marshmallow                   3.19.0
matplotlib                    3.7.0
matplotlib-inline             0.1.6
miniful                       0.0.6
miniKanren                    1.0.3
minorminer                    0.2.9
mistune                       2.0.5
mljar-supervised              0.11.5
mlxtend                       0.21.0
mmh3                          2.5.1
modin                         0.18.1
mpi4py                        3.1.4
mplfinance                    0.12.9b7
mpmath                        1.2.1
msgpack                       1.0.4
mthree                        2.4.0
multidict                     6.0.4
multipledispatch              0.6.0
multiprocess                  0.70.14
multitasking                  0.0.11
murmurhash                    1.0.9
nbclassic                     0.5.5
nbclient                      0.7.3
nbconvert                     7.3.1
nbeats-keras                  1.8.0
nbeats-pytorch                1.8.0
nbformat                      5.8.0
nest-asyncio                  1.5.6
networkx                      2.8.8
neural-tangents               0.6.2
neuralprophet                 0.5.0
nfoursid                      1.0.1
nltk                          3.8.1
nose                          1.3.7
notebook                      6.5.4
notebook_shim                 0.2.2
ntlm-auth                     1.5.0
numba                         0.56.4
numerapi                      2.13.2
numexpr                       2.8.4
numpy                         1.23.5
numpydoc                      1.5.0
nvidia-cublas-cu11            11.10.3.66
nvidia-cuda-nvrtc-cu11        11.7.99
nvidia-cuda-runtime-cu11      11.7.99
nvidia-cudnn-cu11             8.5.0.96
nvidia-ml-py                  11.525.112
oauthlib                      3.2.2
openai                        0.26.5
opencensus                    0.11.2
opencensus-context            0.1.3
opencv-python                 4.7.0.72
openpyxl                      3.1.1
opt-einsum                    3.3.0
optuna                        3.1.0
orjson                        3.8.10
ortools                       9.4.1874
osqp                          0.6.2.post9
outdated                      0.2.2
packaging                     23.1
pandas                        1.5.3
pandas-datareader             0.10.0
pandas-flavor                 0.5.0
pandas-market-calendars       4.1.4
pandas-ta                     0.3.14b0
pandocfilters                 1.5.0
panel                         0.14.3
param                         1.13.0
parso                         0.8.3
partd                         1.4.0
pastel                        0.2.1
pathos                        0.3.0
pathy                         0.10.1
patsy                         0.5.3
pbr                           5.11.1
penaltymodel                  1.0.2
PennyLane                     0.29.0
PennyLane-Lightning           0.29.0
PennyLane-qiskit              0.29.0
persim                        0.3.1
pexpect                       4.8.0
pickleshare                   0.7.5
Pillow                        9.5.0
pingouin                      0.5.3
pip                           22.3.1
pkgutil_resolve_name          1.3.10
platformdirs                  3.2.0
plotly                        5.13.1
plotly-resampler              0.8.3.2
plucky                        0.4.3
pluggy                        1.0.0
ply                           3.11
pmdarima                      2.0.2
polars                        0.16.9
pox                           0.3.2
ppft                          1.7.6.6
pprofile                      2.1.0
ppscore                       1.2.0
preshed                       3.0.8
prometheus-client             0.16.0
prompt-toolkit                3.0.38
property-cached               1.6.4
prophet                       1.1.2
protobuf                      3.19.6
psutil                        5.9.5
psycopg2-binary               2.9.6
ptvsd                         4.3.2
ptyprocess                    0.7.0
PuLP                          2.7.0
pure-eval                     0.2.2
py-cpuinfo                    9.0.0
py-heat                       0.0.6
py-heat-magic                 0.0.2
py-lets-be-rational           1.0.1
py-spy                        0.3.14
py-vollib                     1.0.1
py4j                          0.10.9.7
pyaml                         21.10.1
pyarrow                       11.0.0
pyasn1                        0.4.8
pyasn1-modules                0.2.8
pybind11                      2.10.4
pycares                       4.3.0
pycosat                       0.6.4
pycparser                     2.21
pyct                          0.5.0
pydantic                      1.10.7
pyDeprecate                   0.3.2
pydevd-pycharm                201.8538.36
pydmd                         0.4.0.post2301
pyerfa                        2.0.0.3
pyfolio                       0.9.2
pyfolio-reloaded              0.9.5
pyFUME                        0.2.25
Pygments                      2.15.1
pykalman                      0.9.5
pylev                         1.4.0
pyluach                       2.2.0
pymannkendall                 1.4.3
pymc                          5.0.2
pymdptoolbox                  4.0b3
PyMeeus                       0.5.12
PyMySQL                       1.0.3
pynndescent                   0.5.9
pyod                          1.0.9
Pyomo                         6.5.0
pyOpenSSL                     22.0.0
pyparsing                     3.0.9
pyportfolioopt                1.5.4
pyqubo                        1.3.1
pyrb                          1.0.1
pyro-api                      0.1.2
pyro-ppl                      1.8.4
pyrsistent                    0.19.3
pysimdjson                    5.0.2
PySocks                       1.7.1
pystan                        3.6.0
pytensor                      2.9.1
pytest                        7.3.1
python-dateutil               2.8.2
python-statemachine           1.0.3
pytorch-ignite                0.4.11
pytorch-lightning             1.7.4
pytz                          2023.3
pyvinecopulib                 0.6.2
pyviz-comms                   2.2.1
PyWavelets                    1.4.1
PyYAML                        6.0
pyzmq                         25.0.2
qdldl                         0.1.7
qiskit                        0.41.1
qiskit-aer                    0.11.2
qiskit-ibmq-provider          0.20.1
qiskit-terra                  0.23.2
qpd                           0.4.1
qtconsole                     5.4.2
QtPy                          2.3.1
quadprog                      0.1.11
quantecon                     0.6.0
QuantLib                      1.29
QuantStats                    0.0.59
rauth                         0.7.3
ray                           2.3.0
rectangle-packer              2.0.1
regex                         2023.3.23
requests                      2.28.1
requests-ntlm                 1.1.0
requests-oauthlib             1.3.1
retrying                      1.3.4
retworkx                      0.12.1
rich                          12.4.4
ripser                        0.6.4
Riskfolio-Lib                 4.0.3
riskparityportfolio           0.4
river                         0.14.0
rsa                           4.9
ruamel.yaml                   0.17.21
ruamel.yaml.clib              0.2.6
ruptures                      1.1.7
rustworkx                     0.12.1
SALib                         1.4.7
scikeras                      0.10.0
scikit-image                  0.19.3
scikit-learn                  1.2.1
scikit-learn-extra            0.2.0
scikit-multiflow              0.5.3
scikit-optimize               0.9.0
scikit-plot                   0.3.7
scikit-tda                    1.0.0
scipy                         1.10.1
scs                           3.2.3
sdeint                        0.3.0
seaborn                       0.12.2
semantic-version              2.10.0
Send2Trash                    1.8.0
setuptools                    64.0.2
setuptools-scm                7.1.0
shap                          0.41.0
simpful                       2.10.0
simplejson                    3.19.1
simpy                         4.0.1
six                           1.16.0
sklearn-json                  0.1.0
skope-rules                   1.0.1
sktime                        0.16.1
slicer                        0.0.7
smart-open                    6.3.0
sniffio                       1.3.0
snowballstemmer               2.2.0
sortedcontainers              2.4.0
soupsieve                     2.4.1
spacy                         3.5.0
spacy-legacy                  3.0.12
spacy-loggers                 1.0.4
Sphinx                        6.1.3
sphinxcontrib-applehelp       1.0.4
sphinxcontrib-devhelp         1.0.2
sphinxcontrib-htmlhelp        2.0.1
sphinxcontrib-jsmath          1.0.1
sphinxcontrib-qthelp          1.0.3
sphinxcontrib-serializinghtml 1.1.5
SQLAlchemy                    1.4.47
sqlglot                       11.5.5
srsly                         2.4.6
ssm                           0.0.1
stable-baselines3             1.7.0
stack-data                    0.6.2
statsforecast                 1.5.0
statsmodels                   0.13.5
stellargraph                  1.2.1
stevedore                     5.0.0
stochastic                    0.7.0
stockstats                    0.5.2
stumpy                        1.11.1
symengine                     0.10.0
sympy                         1.11.1
ta                            0.10.2
TA-Lib                        0.4.18
tables                        3.8.0
tabulate                      0.8.10
tadasets                      0.0.4
tbats                         1.1.3
tblib                         1.7.0
tenacity                      8.2.2
tensorboard                   2.11.2
tensorboard-data-server       0.6.1
tensorboard-plugin-wit        1.8.1
tensorboardX                  2.6
tensorflow                    2.11.0
tensorflow-addons             0.19.0
tensorflow-decision-forests   1.2.0
tensorflow-estimator          2.11.0
tensorflow-hub                0.13.0
tensorflow-io-gcs-filesystem  0.32.0
tensorflow-probability        0.19.0
tensorflow-text               2.11.0
tensorly                      0.8.0
tensortrade                   1.0.3
termcolor                     2.2.0
terminado                     0.17.1
tf2jax                        0.3.3
thinc                         8.1.9
threadpoolctl                 3.1.0
thriftpy2                     0.4.16
thundergbm                    0.3.17
tick                          0.7.0.1
tifffile                      2023.4.12
tinycss2                      1.2.1
toml                          0.10.2
tomli                         2.0.1
toolz                         0.12.0
torch                         1.13.1
torch-cluster                 1.6.0
torch-geometric               2.2.0
torch-scatter                 2.1.0
torch-sparse                  0.6.16
torch-spline-conv             1.2.1
torchmetrics                  0.9.3
torchvision                   0.14.1
tornado                       6.3
tqdm                          4.64.1
trace-updater                 0.0.9.1
trading-calendars             2.1.1
traitlets                     5.9.0
treeinterpreter               0.2.3
triad                         0.8.6
tsfresh                       0.20.0
tslearn                       0.5.3.2
tweepy                        4.10.0
typeguard                     3.0.2
typer                         0.3.2
typing_extensions             4.5.0
umap-learn                    0.5.3
urllib3                       1.26.14
virtualenv                    20.21.0
wasabi                        1.1.1
wcwidth                       0.2.6
webargs                       8.2.0
webencodings                  0.5.1
websocket-client              1.5.1
websockets                    10.4
Werkzeug                      2.2.3
wheel                         0.37.1
widgetsnbextension            4.0.7
wordcloud                     1.8.2.2
wrapt                         1.14.1
wrds                          3.1.6
wurlitzer                     3.0.3
xarray                        2023.1.0
xarray-einstats               0.5.1
xgboost                       1.7.4
xlrd                          2.0.1
XlsxWriter                    3.1.0
yarl                          1.8.2
yellowbrick                   1.5
yfinance                      0.2.18
zict                          3.0.0
zipp                          3.15.0
zope.event                    4.6
zope.interface                6.0
zstandard                     0.18.0

# Name                               Version
Accord                               3.6.0
Accord.Fuzzy                         3.6.0
Accord.MachineLearning               3.6.0
Accord.Math                          3.6.0
Accord.Statistics                    3.6.0
CloneExtensions                      1.3.0
Common.Logging                       3.4.1
Common.Logging.Core                  3.4.1
CsvHelper                            19.0.0
Deedle                               2.1.0
DotNetZip                            1.16.0
DynamicInterop                       0.9.1
fasterflect                          3.0.0
FSharp.Core                          4.5.2
MathNet.Numerics                     4.15.0
McMaster.Extensions.CommandLineUtils 2.6.0
Microsoft.IO.RecyclableMemoryStream  2.3.1
Microsoft.NET.Test.Sdk               16.9.4
Microsoft.TestPlatform.ObjectModel   16.9.4
Moq                                  4.16.1
NetMQ                                4.0.1.6
Newtonsoft.Json                      13.0.2
NodaTime                             3.0.5
NUnit                                3.13.3
NUnit3TestAdapter                    4.2.1
protobuf-net                         3.1.33
QLNet                                1.12.0
QuantConnect.pythonnet               2.0.18
RestSharp                            106.12.0
SharpZipLib                          1.3.3
System.ComponentModel.Composition    6.0.0
Accord.Audio                         3.6.0
Accord.Genetic                       3.6.0
Accord.MachineLearning.GPL           3.6.0
Catalyst                             1.0.31087
Catalyst.Models.English              1.0.30952
CNTK.CPUOnly                         2.8.0-rc0.dev20200201
Google.OrTools                       9.4.1874
LibTopoART                           0.96.0
MathNet.Filtering                    0.7.0
MathNet.Filtering.Kalman             0.7.0
MathNet.Spatial                      0.6.0
Microsoft.Data.Analysis              0.19.1
Microsoft.ML                         1.7.1
Microsoft.ML.CpuMath                 1.7.1
Microsoft.ML.DataView                1.7.1
Microsoft.ML.Ensemble                0.19.1
Microsoft.ML.FastTree                1.7.1
Microsoft.ML.LightGbm                1.7.1
Microsoft.ML.Mkl.Components          1.7.1
Microsoft.ML.OnnxRuntime             1.12.1
Microsoft.ML.TensorFlow              1.7.1
Microsoft.ML.TimeSeries              1.7.1
NumSharp                             0.30.0
Plotly.NET                           3.0.1
Plotly.NET.Interactive               3.0.2
SharpLearning.AdaBoost               0.31.8
SharpLearning.Common.Interfaces      0.31.8
SharpLearning.Containers             0.31.8
SharpLearning.CrossValidation        0.31.8
SharpLearning.DecisionTrees          0.31.8
SharpLearning.Ensemble               0.31.8
SharpLearning.FeatureTransformations 0.31.8
SharpLearning.GradientBoost          0.31.8
SharpLearning.InputOutput            0.31.8
SharpLearning.Metrics                0.31.8
SharpLearning.Neural                 0.31.8
SharpLearning.Optimization           0.31.8
SharpLearning.RandomForest           0.31.8
SharpLearning.XGBoost                0.31.8
SharpNeatLib                         2.4.4
TensorFlow.Keras                     0.7.0
TensorFlow.NET                       0.70.1

Pomegranate Environment

If you use C#, this environment isn't available.

The Pomegranate environment supports the following libraries:

# Name                        Version
absl-py                       1.4.0
adagio                        0.2.4
aesara                        2.8.12
aiodns                        3.0.0
aiohttp                       3.8.4
aiohttp-cors                  0.7.0
aiosignal                     1.3.1
alabaster                     0.7.13
ale-py                        0.7.4
alembic                       1.10.3
alpaca-trade-api              0.26
alphalens-reloaded            0.4.3
altair                        4.2.2
ansi2html                     1.8.0
antlr4-python3-runtime        4.11.1
anyio                         3.6.2
appdirs                       1.4.4
arch                          5.3.1
argon2-cffi                   21.3.0
argon2-cffi-bindings          21.2.0
arviz                         0.15.1
astropy                       5.2.1
asttokens                     2.2.1
astunparse                    1.6.3
async-timeout                 4.0.2
asyncio-nats-client           0.11.5
attrs                         23.1.0
autograd                      1.5
autokeras                     1.1.0
autoray                       0.6.3
AutoROM                       0.4.2
AutoROM.accept-rom-license    0.6.1
ax-platform                   0.3.0
Babel                         2.12.1
backcall                      0.2.0
bayesian-optimization         1.4.2
beautifulsoup4                4.11.2
bleach                        6.0.0
blessed                       1.20.0
blis                          0.7.9
blosc2                        2.0.0
bokeh                         2.4.3
boltons                       23.0.0
botorch                       0.8.2
Bottleneck                    1.3.7
brotlipy                      0.7.0
cachetools                    5.3.0
captum                        0.6.0
catalogue                     2.0.8
catboost                      1.1.1
category-encoders             2.6.0
ccxt                          3.0.72
certifi                       2022.12.7
cffi                          1.15.1
chardet                       5.1.0
charset-normalizer            2.0.4
check-shapes                  1.0.0
click                         7.1.2
clikit                        0.6.2
cloudpickle                   2.2.1
cmaes                         0.9.1
cmdstanpy                     1.1.0
colorama                      0.4.6
colorcet                      3.0.1
colorful                      0.5.5
colorlog                      6.7.0
colorlover                    0.3.0
colour                        0.1.5
comm                          0.1.3
commonmark                    0.9.1
conda                         23.3.1
conda-content-trust           0.1.3
conda-package-handling        2.0.2
conda_package_streaming       0.7.0
confection                    0.0.4
cons                          0.4.5
contourpy                     1.0.7
convertdate                   2.4.0
copulae                       0.7.7
copulas                       0.8.0
cramjam                       2.6.2
crashtest                     0.3.1
creme                         0.6.1
cryptography                  38.0.4
cufflinks                     0.17.3
cvxopt                        1.3.0
cvxpy                         1.3.0
cycler                        0.11.0
cymem                         2.0.7
Cython                        0.29.33
darts                         0.23.1
dash                          2.9.3
dash-core-components          2.0.0
dash-cytoscape                0.3.0
dash-html-components          2.0.0
dash-table                    5.0.0
dask                          2023.4.0
deap                          1.3.3
debugpy                       1.5.1
decorator                     5.1.1
defusedxml                    0.7.1
Deprecated                    1.2.13
dgl                           1.0.1
dill                          0.3.6
dimod                         0.12.3
diskcache                     5.6.1
distlib                       0.3.6
distributed                   2021.4.1
dm-tree                       0.1.8
docutils                      0.19
DoubleML                      0.5.2
dtreeviz                      2.2.1
dtw-python                    1.3.0
dwave-cloud-client            0.10.3
dwave-drivers                 0.4.4
dwave-greedy                  0.3.0
dwave-hybrid                  0.6.9
dwave-inspector               0.3.0
dwave-inspectorapp            0.3.0
dwave-neal                    0.6.0
dwave-networkx                0.8.12
dwave-ocean-sdk               6.1.1
dwave-preprocessing           0.5.3
dwave-samplers                1.0.0
dwave-system                  1.18.0
dwave-tabu                    0.5.0
dwavebinarycsp                0.2.0
dx                            0.1.22
ecos                          2.0.12
EMD-signal                    1.4.0
empyrical                     0.5.5
empyrical-reloaded            0.5.9
en-core-web-md                3.5.0
en-core-web-sm                3.5.0
entrypoints                   0.4
ephem                         4.1.4
et-xmlfile                    1.1.0
etuples                       0.3.8
exceptiongroup                1.1.1
exchange-calendars            4.2.6
executing                     1.2.0
ezyrb                         1.3.0.post2304
fastai                        2.7.11
fastai2                       0.0.30
fastcore                      1.5.29
fastdownload                  0.0.7
fasteners                     0.18
fastjsonschema                2.16.3
fastparquet                   2023.2.0
fastprogress                  1.0.3
fasttext                      0.9.2
featuretools                  0.23.1
filelock                      3.12.0
findiff                       0.9.2
finrl                         0.3.1
FixedEffectModel              0.0.5
Flask                         2.0.3
flatbuffers                   23.3.3
fonttools                     4.39.3
fracdiff                      0.9.0
frozendict                    2.3.7
frozenlist                    1.3.3
fs                            2.4.16
fsspec                        2023.4.0
fst-pso                       1.8.1
fugue                         0.8.3
fugue-sql-antlr               0.1.6
future                        0.18.3
fuzzy-c-means                 1.6.3
FuzzyTM                       2.0.5
gast                          0.4.0
gensim                        4.3.0
gevent                        22.10.2
gluonts                       0.12.3
google-api-core               2.11.0
google-auth                   2.17.3
google-auth-oauthlib          0.4.6
google-pasta                  0.2.0
googleapis-common-protos      1.59.0
gpflow                        2.7.0
gplearn                       0.4.2
gpustat                       1.1
GPUtil                        1.4.0
gpytorch                      1.9.1
graphviz                      0.8.4
greenlet                      2.0.2
grpcio                        1.54.0
gym                           0.21.0
Gymnasium                     0.26.3
gymnasium-notices             0.0.1
h2o                           3.40.0.1
h5netcdf                      1.1.0
h5py                          3.8.0
hijri-converter               2.2.4
hmmlearn                      0.2.8
holidays                      0.23
holoviews                     1.15.4
homebase                      1.0.1
hopcroftkarp                  1.2.5
html5lib                      1.1
httpstan                      4.9.1
hurst                         0.0.5
hvplot                        0.8.2
hyperopt                      0.2.7
idna                          3.4
iisignature                   0.24
ijson                         3.2.0.post0
imageio                       2.27.0
imagesize                     1.4.1
imbalanced-learn              0.10.1
importlib-metadata            4.13.0
importlib-resources           5.12.0
iniconfig                     2.0.0
injector                      0.20.1
interpret                     0.3.0
interpret-core                0.3.2
ipykernel                     6.22.0
ipython                       8.12.0
ipython-genutils              0.2.0
ipywidgets                    8.0.4
itsdangerous                  2.1.2
jax                           0.4.4
jaxlib                        0.4.4
jedi                          0.18.2
Jinja2                        3.1.2
joblib                        1.2.0
jqdatasdk                     1.8.11
json5                         0.9.11
jsonpatch                     1.32
jsonpointer                   2.0
jsonschema                    4.17.3
jupyter                       1.0.0
jupyter-bokeh                 3.0.5
jupyter-console               6.6.3
jupyter-dash                  0.4.2
jupyter-resource-usage        0.7.2
jupyter-server                1.24.0
jupyter_client                8.2.0
jupyter_core                  5.3.0
jupyterlab                    3.4.4
jupyterlab-pygments           0.2.2
jupyterlab-widgets            3.0.7
jupyterlab_server             2.22.1
keract                        4.5.1
keras                         2.11.0
keras-nlp                     0.4.1
keras-rl                      0.4.2
keras-tuner                   1.3.5
kiwisolver                    1.4.4
kmapper                       2.0.1
korean-lunar-calendar         0.3.1
kt-legacy                     1.0.5
langcodes                     3.3.0
lark                          1.1.5
lazy_loader                   0.2
lazypredict                   0.2.12
libclang                      16.0.0
lightgbm                      3.3.5
lime                          0.2.0.1
line-profiler                 4.0.2
linear-operator               0.3.0
littleutils                   0.2.2
livelossplot                  0.5.5
llvmlite                      0.38.1
locket                        1.0.0
logical-unification           0.4.5
LunarCalendar                 0.0.9
lxml                          4.9.2
lz4                           4.3.2
Mako                          1.2.4
Markdown                      3.4.3
MarkupSafe                    2.1.2
marshmallow                   3.19.0
matplotlib                    3.7.0
matplotlib-inline             0.1.6
miniful                       0.0.6
miniKanren                    1.0.3
minorminer                    0.2.9
mistune                       2.0.5
mljar-supervised              0.11.5
mlxtend                       0.21.0
mmh3                          2.5.1
modin                         0.18.1
mpi4py                        3.1.4
mplfinance                    0.12.9b7
mpmath                        1.2.1
msgpack                       1.0.4
mthree                        2.4.0
multidict                     6.0.4
multipledispatch              0.6.0
multiprocess                  0.70.14
multitasking                  0.0.11
murmurhash                    1.0.9
mxnet                         1.9.1
nbclassic                     0.5.5
nbclient                      0.7.3
nbconvert                     7.3.1
nbeats-keras                  1.8.0
nbeats-pytorch                1.8.0
nbformat                      5.8.0
nest-asyncio                  1.5.6
networkx                      2.8.8
neural-tangents               0.6.2
neuralprophet                 0.5.0
nfoursid                      1.0.1
nltk                          3.8.1
nose                          1.3.7
notebook                      6.5.4
notebook_shim                 0.2.2
ntlm-auth                     1.5.0
numba                         0.55.1
numerapi                      2.13.2
numexpr                       2.8.4
numpy                         1.21.5
numpydoc                      1.5.0
nvidia-cublas-cu11            11.10.3.66
nvidia-cuda-nvrtc-cu11        11.7.99
nvidia-cuda-runtime-cu11      11.7.99
nvidia-cudnn-cu11             8.5.0.96
nvidia-ml-py                  11.525.112
oauthlib                      3.2.2
openai                        0.26.5
opencensus                    0.11.2
opencensus-context            0.1.3
opencv-python                 4.7.0.72
openpyxl                      3.1.1
opt-einsum                    3.3.0
optuna                        3.1.0
orjson                        3.8.10
ortools                       9.4.1874
osqp                          0.6.2.post9
outdated                      0.2.2
packaging                     23.1
pandas                        1.5.3
pandas-datareader             0.10.0
pandas-flavor                 0.5.0
pandas-market-calendars       4.1.4
pandas-ta                     0.3.14b0
pandocfilters                 1.5.0
panel                         0.14.3
param                         1.13.0
parso                         0.8.3
partd                         1.4.0
pastel                        0.2.1
pathos                        0.3.0
pathy                         0.10.1
patsy                         0.5.3
pbr                           5.11.1
penaltymodel                  1.0.2
PennyLane                     0.29.0
PennyLane-Lightning           0.29.0
PennyLane-qiskit              0.29.0
persim                        0.3.1
pexpect                       4.8.0
pickleshare                   0.7.5
Pillow                        9.5.0
pingouin                      0.5.3
pip                           22.0.4
pkgutil_resolve_name          1.3.10
platformdirs                  3.2.0
plotly                        5.13.1
plotly-resampler              0.8.3.2
plucky                        0.4.3
pluggy                        1.0.0
ply                           3.11
pmdarima                      2.0.2
polars                        0.16.9
pomegranate                   0.14.8
pox                           0.3.2
ppft                          1.7.6.6
pprofile                      2.1.0
ppscore                       1.2.0
preshed                       3.0.8
prometheus-client             0.16.0
prompt-toolkit                3.0.38
property-cached               1.6.4
prophet                       1.1.2
protobuf                      3.19.6
psutil                        5.9.5
psycopg2-binary               2.9.6
ptvsd                         4.3.2
ptyprocess                    0.7.0
PuLP                          2.7.0
pure-eval                     0.2.2
py-cpuinfo                    9.0.0
py-heat                       0.0.6
py-heat-magic                 0.0.2
py-lets-be-rational           1.0.1
py-spy                        0.3.14
py-vollib                     1.0.1
py4j                          0.10.9.7
pyaml                         21.10.1
pyarrow                       11.0.0
pyasn1                        0.4.8
pyasn1-modules                0.2.8
pybind11                      2.10.4
pycares                       4.3.0
pycosat                       0.6.4
pycparser                     2.21
pyct                          0.5.0
pydantic                      1.10.7
pyDeprecate                   0.3.2
pydevd-pycharm                201.8538.36
pydmd                         0.4.0.post2301
pyerfa                        2.0.0.3
pyfolio                       0.9.2
pyfolio-reloaded              0.9.5
pyFUME                        0.2.25
Pygments                      2.15.1
pykalman                      0.9.5
pylev                         1.4.0
pyluach                       2.2.0
pymannkendall                 1.4.3
pymc                          5.0.2
pymdptoolbox                  4.0b3
PyMeeus                       0.5.12
PyMySQL                       1.0.3
pynndescent                   0.5.9
pyod                          1.0.9
Pyomo                         6.5.0
pyOpenSSL                     22.0.0
pyparsing                     3.0.9
pyportfolioopt                1.5.4
pyqubo                        1.3.1
pyrb                          1.0.1
pyro-api                      0.1.2
pyro-ppl                      1.8.4
pyrsistent                    0.19.3
pysimdjson                    5.0.2
PySocks                       1.7.1
pystan                        3.6.0
pytensor                      2.9.1
pytest                        7.3.1
python-dateutil               2.8.2
python-statemachine           1.0.3
pytorch-ignite                0.4.11
pytorch-lightning             1.7.4
pytz                          2023.3
pyvinecopulib                 0.6.2
pyviz-comms                   2.2.1
PyWavelets                    1.4.1
PyYAML                        6.0
pyzmq                         25.0.2
qdldl                         0.1.7
qiskit                        0.41.1
qiskit-aer                    0.11.2
qiskit-ibmq-provider          0.20.1
qiskit-terra                  0.23.2
qpd                           0.4.1
qtconsole                     5.4.2
QtPy                          2.3.1
quadprog                      0.1.11
quantecon                     0.6.0
QuantLib                      1.29
QuantStats                    0.0.59
rauth                         0.7.3
ray                           2.3.0
rectangle-packer              2.0.1
regex                         2023.3.23
requests                      2.28.1
requests-ntlm                 1.1.0
requests-oauthlib             1.3.1
retrying                      1.3.4
retworkx                      0.12.1
rich                          12.4.4
ripser                        0.6.4
Riskfolio-Lib                 4.0.3
riskparityportfolio           0.4
river                         0.14.0
rsa                           4.9
ruamel.yaml                   0.17.21
ruamel.yaml.clib              0.2.6
ruptures                      1.1.7
rustworkx                     0.12.1
SALib                         1.4.7
scikeras                      0.10.0
scikit-image                  0.19.3
scikit-learn                  1.2.1
scikit-learn-extra            0.2.0
scikit-multiflow              0.5.3
scikit-optimize               0.9.0
scikit-plot                   0.3.7
scikit-tda                    1.0.0
scipy                         1.8.0
scs                           3.2.3
sdeint                        0.3.0
seaborn                       0.12.2
semantic-version              2.10.0
Send2Trash                    1.8.0
setuptools                    56.0.0
setuptools-scm                7.1.0
shap                          0.41.0
simpful                       2.10.0
simplejson                    3.19.1
simpy                         4.0.1
six                           1.16.0
sklearn-json                  0.1.0
skope-rules                   1.0.1
sktime                        0.16.1
slicer                        0.0.7
smart-open                    6.3.0
sniffio                       1.3.0
snowballstemmer               2.2.0
sortedcontainers              2.4.0
soupsieve                     2.4.1
spacy                         3.5.0
spacy-legacy                  3.0.12
spacy-loggers                 1.0.4
Sphinx                        6.1.3
sphinxcontrib-applehelp       1.0.4
sphinxcontrib-devhelp         1.0.2
sphinxcontrib-htmlhelp        2.0.1
sphinxcontrib-jsmath          1.0.1
sphinxcontrib-qthelp          1.0.3
sphinxcontrib-serializinghtml 1.1.5
SQLAlchemy                    1.4.47
sqlglot                       11.5.5
srsly                         2.4.6
ssm                           0.0.1
stable-baselines3             1.7.0
stack-data                    0.6.2
statsforecast                 1.5.0
statsmodels                   0.13.5
stellargraph                  1.2.1
stevedore                     5.0.0
stochastic                    0.7.0
stockstats                    0.5.2
stumpy                        1.11.1
symengine                     0.10.0
sympy                         1.11.1
ta                            0.10.2
TA-Lib                        0.4.18
tables                        3.8.0
tabulate                      0.8.10
tadasets                      0.0.4
tbats                         1.1.3
tblib                         1.7.0
tenacity                      8.2.2
tensorboard                   2.11.2
tensorboard-data-server       0.6.1
tensorboard-plugin-wit        1.8.1
tensorboardX                  2.6
tensorflow                    2.11.0
tensorflow-addons             0.19.0
tensorflow-decision-forests   1.2.0
tensorflow-estimator          2.11.0
tensorflow-hub                0.13.0
tensorflow-io-gcs-filesystem  0.32.0
tensorflow-probability        0.19.0
tensorflow-text               2.11.0
tensorly                      0.8.0
tensortrade                   1.0.3
termcolor                     2.2.0
terminado                     0.17.1
tf2jax                        0.3.3
thinc                         8.1.9
threadpoolctl                 3.1.0
thriftpy2                     0.4.16
thundergbm                    0.3.17
tick                          0.7.0.1
tifffile                      2023.4.12
tigramite                     5.1.0.3
tinycss2                      1.2.1
toml                          0.10.2
tomli                         2.0.1
toolz                         0.12.0
torch                         1.13.1
torch-cluster                 1.6.0
torch-geometric               2.2.0
torch-scatter                 2.1.0
torch-sparse                  0.6.16
torch-spline-conv             1.2.1
torchmetrics                  0.9.3
torchvision                   0.14.1
tornado                       6.3
tqdm                          4.64.1
trace-updater                 0.0.9.1
trading-calendars             2.1.1
traitlets                     5.9.0
treeinterpreter               0.2.3
triad                         0.8.6
tsfresh                       0.20.0
tslearn                       0.5.3.2
tweepy                        4.10.0
typeguard                     3.0.2
typer                         0.3.2
typing_extensions             4.5.0
umap-learn                    0.5.3
urllib3                       1.26.14
virtualenv                    20.21.0
wasabi                        1.1.1
wcwidth                       0.2.6
webargs                       8.2.0
webencodings                  0.5.1
websocket-client              1.5.1
websockets                    10.4
Werkzeug                      2.2.3
wheel                         0.37.1
widgetsnbextension            4.0.7
wordcloud                     1.8.2.2
wrapt                         1.14.1
wrds                          3.1.6
wurlitzer                     3.0.3
xarray                        2023.1.0
xarray-einstats               0.5.1
xgboost                       1.7.4
xlrd                          2.0.1
XlsxWriter                    3.1.0
yarl                          1.8.2
yellowbrick                   1.5
yfinance                      0.2.18
zict                          3.0.0
zipp                          3.15.0
zope.event                    4.6
zope.interface                6.0
zstandard                     0.18.0

Hudson & Thames Environment

If you use C#, this environment isn't available.

The Hudson & Thames environment supports the following libraries:

# Name                       Version
absl-py                      1.3.0
analytics-python             1.4.0
ansi2html                    1.8.0
anyio                        3.6.2
appdirs                      1.4.4
arch                         4.16.1
argon2-cffi                  21.3.0
argon2-cffi-bindings         21.2.0
asttokens                    2.2.1
astunparse                   1.6.3
attrs                        22.2.0
Babel                        2.11.0
backcall                     0.2.0
backoff                      1.10.0
beautifulsoup4               4.11.1
bleach                       5.0.1
Brotli                       1.0.9
bs4                          0.0.1
cachetools                   5.2.0
certifi                      2022.12.7
cffi                         1.15.1
charset-normalizer           2.1.1
click                        8.1.3
cloudpickle                  2.2.0
clr-loader                   0.1.6
comm                         0.1.2
cramjam                      2.6.2
cssselect                    1.2.0
cvxpy                        1.2.0
cycler                       0.11.0
Cython                       0.29.28
dash                         1.21.0
dash-bootstrap-components    0.13.1
dash-core-components         1.17.1
dash-cytoscape               0.2.0
dash-html-components         1.1.4
dash-table                   4.12.0
dask                         2022.12.1
debugpy                      1.6.4
decorator                    4.4.2
defusedxml                   0.7.1
distributed                  2022.12.1
ecos                         2.0.12
entrypoints                  0.4
executing                    1.2.0
fake-useragent               1.1.1
fastjsonschema               2.16.2
fastparquet                  0.8.1
Flask                        2.1.3
Flask-Compress               1.13
flatbuffers                  22.12.6
fsspec                       2022.11.0
future                       0.18.2
gast                         0.5.3
getmac                       0.8.3
google-auth                  2.15.0
google-auth-oauthlib         0.4.6
google-pasta                 0.2.0
grpcio                       1.51.1
h5py                         3.7.0
HeapDict                     1.0.1
ht-auth                      0.1.0
idna                         3.4
importlib-metadata           5.2.0
importlib-resources          5.10.1
ipykernel                    6.19.4
ipython                      8.7.0
ipython-genutils             0.2.0
itsdangerous                 2.1.2
jedi                         0.18.2
Jinja2                       3.1.2
joblib                       1.2.0
json5                        0.9.10
jsonschema                   4.17.3
jupyter_client               7.4.8
jupyter_core                 5.1.1
jupyter-dash                 0.4.2
jupyter-server               1.23.4
jupyterlab                   3.4.4
jupyterlab-pygments          0.2.2
jupyterlab_server            2.17.0
keras                        2.8.0
Keras-Preprocessing          1.1.2
kiwisolver                   1.4.4
libclang                     14.0.6
llvmlite                     0.39.1
locket                       1.0.0
lxml                         4.6.2
Markdown                     3.4.1
MarkupSafe                   2.1.1
matplotlib                   3.4.3
matplotlib-inline            0.1.6
matrixprofile                1.1.10
mistune                      2.0.4
mlfinlab                     1.6.0
monotonic                    1.6
mpmath                       1.2.1
msgpack                      1.0.4
multitasking                 0.0.11
nbclassic                    0.4.8
nbclient                     0.7.2
nbconvert                    7.2.7
nbformat                     5.7.1
nest-asyncio                 1.5.6
networkx                     2.5.1
notebook                     6.5.2
notebook_shim                0.2.2
numba                        0.56.4
numpy                        1.20.1
oauthlib                     3.2.2
opt-einsum                   3.3.0
osqp                         0.6.2.post8
packaging                    22.0
pandas                       1.1.5
pandocfilters                1.5.0
parse                        1.19.0
parso                        0.8.3
partd                        1.3.0
patsy                        0.5.3
pexpect                      4.8.0
pickleshare                  0.7.5
Pillow                       9.3.0
pip                          22.0.4
pkgutil_resolve_name         1.3.10
platformdirs                 2.6.1
plotly                       5.11.0
pmdarima                     1.8.5
POT                          0.8.2
prometheus-client            0.15.0
prompt-toolkit               3.0.36
property-cached              1.6.4
protobuf                     3.11.2
psutil                       5.9.4
ptyprocess                   0.7.0
pure-eval                    0.2.2
pyasn1                       0.4.8
pyasn1-modules               0.2.8
pybind11                     2.10.1
pycparser                    2.21
pyee                         8.2.2
Pygments                     2.13.0
pykalman                     0.9.5
pyparsing                    3.0.9
pyppeteer                    1.0.2
pyquery                      2.0.0
pyrsistent                   0.19.2
python-dateutil              2.8.2
pytz                         2022.7
pyvinecopulib                0.5.5
PyYAML                       6.0
pyzmq                        24.0.1
qdldl                        0.1.5.post2
requests                     2.28.1
requests-html                0.10.0
requests-oauthlib            1.3.1
retrying                     1.3.4
rsa                          4.9
scikit-learn                 0.24.2
scipy                        1.9.3
scs                          3.2.0
seaborn                      0.11.1
Send2Trash                   1.8.0
setuptools                   56.0.0
setuptools-scm               7.1.0
six                          1.16.0
sniffio                      1.3.0
sortedcontainers             2.4.0
soupsieve                    2.3.2.post1
stack-data                   0.6.2
statsmodels                  0.13.5
stumpy                       1.11.1
TA-Lib                       0.4.18
tblib                        1.7.0
tenacity                     8.1.0
tensorboard                  2.8.0
tensorboard-data-server      0.6.1
tensorboard-plugin-wit       1.8.1
tensorflow                   2.8.0
tensorflow-io-gcs-filesystem 0.29.0
termcolor                    2.1.1
terminado                    0.17.1
tf-estimator-nightly         2.8.0.dev2021122109
threadpoolctl                3.1.0
tinycss2                     1.2.1
tomli                        2.0.1
toolz                        0.12.0
tornado                      6.2
tqdm                         4.64.1
traitlets                    5.8.0
tsfresh                      0.19.0
typing_extensions            4.4.0
urllib3                      1.26.13
w3lib                        2.1.1
wcwidth                      0.2.5
webencodings                 0.5.1
websocket-client             1.4.2
websockets                   10.4
Werkzeug                     2.0.0
wheel                        0.38.4
wrapt                        1.14.1
yahoo-fin                    0.8.6
yfinance                     0.1.63
zict                         2.2.0
zipp                         3.11.0    

Request New Libraries

To request a new library, contact us . We will add the library to the queue for review and deployment. Since the libraries run on our servers, we need to ensure they are secure and won't cause harm. The process of adding new libraries takes 2-4 weeks to complete. View the list of libraries currently under review on the Issues list of the Lean GitHub repository .

Projects > LEAN Engine Versions

Introduction

The latest master branch on the LEAN GitHub repository is the default engine branch that runs the backtesting, research, and live trading nodes in QuantConnect Cloud. The latest version of LEAN is generally the safest as it includes all bug fixes.

Trading Firm or Institution tier users concerned for stability can elect to use older or custom versions of LEAN in the IDE. These are powered by the QuantConnect/LEAN Github Branches . We use a continuous deployment process to ship custom branches to production for trading. To create a custom version of LEAN, make a pull request to LEAN which will be reviewed by our team.

Change Branches

Follow these steps to change the LEAN engine branch that runs your backtests and live trading algorithms:

1. Open a project .
2. In the Project panel, click the LEAN Engine field and then click a branch from the drop-down menu.
3. (Optional) Click About Version to display the branch description.
4. If you want to always use the master branch, select the Always use Master Branch check box.
5. Click Select .

Changing the Lean engine branch only affects the current project. If you create a new project , the new project will use the master branch by default.

Request New Branches

Before starting a pull-request to create a new branch, contact us to discuss the goals of the project.

Research

Research > Getting Started

Introduction

The Research Environment is a Jupyter notebook -based, interactive commandline environment where you can access our data through the QuantBook class. The environment supports both Python and C#. If you use Python, you can import code from the code files in your project into the Research Environment to aid development.

Before you run backtests, we recommend testing your hypothesis in the Research Environment. It's easier to perform data analysis and produce plots in the Research Environment than in a backtest.

Before backtesting or live trading with machine learning models, you may find it beneficial to train them in the Research Environment, save them in the ObjectStore, and then load them from the ObjectStore into the backtesting and live trading environment

In the Research Environment, you can also use the QuantConnect API to import your backtest results for further analysis.

Example

The following snippet demonstrates how to use the Research Environment to plot the price and Bollinger Bands of the S&P 500 index ETF, SPY:

The following snippet demonstrates how to use the Research Environment to print the price of the S&P 500 index ETF, SPY:

// Load the required assembly files and data types
#load "../Initialize.csx"
#load "../QuantConnect.csx"
using QuantConnect;
using QuantConnect.Data;
using QuantConnect.Algorithm;
using QuantConnect.Research;

// Create a QuantBook
var qb = new QuantBook();

// Create a security subscription
var symbol = qb.AddEquity("SPY").Symbol;

// Request some historical data
var history = qb.History(symbol, 70, Resolution.Daily);

foreach (var tradeBar in history)
{
    Console.WriteLine($"{tradeBar.EndTime} :: {tradeBar.ToString()}");
}

# Create a QuantBook
qb = QuantBook()

# Create a security subscription
spy = qb.AddEquity("SPY")

# Request some historical data
history = qb.History(qb.Securities.Keys, 360, Resolution.Daily)

# Calculate the Bollinger Bands
bbdf = qb.Indicator(BollingerBands(30, 2), spy.Symbol, 360, Resolution.Daily)

# Plot the data
bbdf.drop('standarddeviation', 1).plot()

Open Notebooks

Each new project you create contains a notebook file by default. Follow these steps to open the notebook:

1. Open the project .
2. In the right navigation menu, click the Explorer icon.
3. In the Explorer panel, expand the Workspace (Workspace) section.
4. Click the Research.ipynb research.ipynb file.

Run Notebook Cells

Notebooks are a collection of cells where you can execute code snippets or write MarkDown.

The following describes some helpful keyboard shortcuts to speed up your research:

Stop Nodes

You need stop node permissions to stop research nodes in the cloud.

Follow these steps to stop a research node:

1. Open the project .
2. In the right navigation menu, click the Resources icon.
3. Click the stop button next to the research node you want to stop.

Add Notebooks

Follow these steps to add notebook files to a project:

1. Open the project .
2. In the right navigation menu, click the Explorer icon.
3. In the Explorer panel, expand the Workspace (Workspace) section.
4. Click the New File icon.
5. Enter fileName .ipynb .
6. Press Enter .

Rename Notebooks

Follow these steps to rename a notebook in a project:

1. Open the project .
2. In the right navigation menu, click the Explorer icon.
3. In the Explorer panel, right-click the notebook you want to rename and then click Rename .
4. Enter the new name and then press Enter .

Delete Notebooks

Follow these steps to delete a notebook in a project:

1. Open the project .
2. In the right navigation menu, click the Explorer icon.
3. In the Explorer panel, right-click the notebook you want to delete and then click Delete Permanently .
4. Click Delete .

Learn Jupyter

The following table lists some helpful resources to learn Jupyter:

Research > Deployment

Introduction

This page is an introduction to the Research Environment for the Algorithm Lab. For more comprehensive information on using research notebooks, see the Research Environment documentation product.

Resources

Research nodes enable you to spin up an interactive, command-line, Jupyter notebook environments. Several models of research nodes are available. More powerful research nodes allow you to handle more data and run faster computations in your notebooks. The following table shows the specifications of the research node models:

Refer to the Pricing page to see the price of each research node model. You get one free R1-4 research node in your first organization, but the node is replaced when you subscribe to a paid research node in the organization.

You need an idle research node in your organization to launch the Research Environment. You can view all of your organization's nodes from the Resources page or the Resources panel in the IDE . The Resources panel lets you select a specific research node to use. The CPU nodes are available on a fair usage basis. The GPU nodes can be shared with a maximum of three members. Depending on the server load, you may use all of the GPU's processing power.

Sharing

The Research Environment does not currently support simultaneous coding between two peers. You can view the notebook of your colleague, but you can't edit the notebook at the same time. We recommend that only one person opens a notebook because your work may not save if several people open the same notebook. To enable your team members to see your notebook, add them to the project .

Sharing your notebooks is helpful when publishing your findings online, getting feedback on your research process, and explaining your methodology to others. To share a notebook with members not in your organization, run a backtest , generate a link to share the backtest , and then give the backtest link to the other person. They will be able to clone the project and launch the Research Environment using the notebook files.

Historical Data

On our platform, you can access historical data for all of the asset classes that we support. We have datasets for Equities, Options, Futures, Crypto, Forex, CFD, Indices, and alternative data. View the Dataset Market to see all of the datasets that we support. To import custom data, see Custom Data .

Look-Ahead Bias

Look-ahead bias occurs when an algorithm makes decisions using data that would not have yet been available. As you work in the Research Environment, take measures to reduce look-ahead bias in your workflow. If look-ahead bias seeps into your research, you may find profitable results on historical data, however, you will not be able to apply your findings in a live trading algorithm because the data does not exist in real-time.

An example of look-ahead bias is using the closing price to make trading decisions and filling your orders at the same closing price. This can happen in the Research Environment because all of the data is available at the same time. This type of look-ahead bias cannot occur when backtesting with Lean because the data is fed into your algorithm in discrete slices of time and an order is filled using a slice that occurs after the order was placed.

A second example of look-ahead bias occurs when researchers test a model on the same dataset that was used to train the model. In this situation, the model is trained using data that would not have been available when the model was created in practice. A third example of look-ahead bias is when researchers select a universe to apply their trading strategy to based on the past performance of the universe.

Backtesting

Backtesting > Getting Started

Introduction

Backtesting is the process of simulating a trading algorithm on historical data. By running a backtest, you can measure how the algorithm would have performed in the past. Although past performance doesn't guarantee future results, an algorithm that has a proven track record can provide investors with more confidence when deploying to live trading than an algorithm that hasn't performed favorably in the past. Use the QuantConnect platform to run your backtests because we have institutional-grade datasets, an open-source backtesting engine that's constantly being improved, cloud servers to execute the backtests, and the backtesting hardware is maintained 24/7 by QuantConnect engineers.

Run Backtests

To run a backtest, open a project and then click the Backtest icon. If the project successfully builds, "Received backtest backtestName request" displays. If the backtest successfully launches, the IDE displays the backtest results page in a new tab. If the backtest fails to launch due to coding errors, the new tab displays the error. As the backtest executes, you can refresh or close the IDE without interfering with the backtest because it runs on our cloud servers.

View All Backtests

Follow these steps to view all of the backtests of a project:

1. Open the project that contains the backtests you want to view.
2. In the top-right corner of the IDE, click the Backtest Results icon.
   

A table containing all of the backtest results for the project is displayed. If there is a play icon to the left of the name, it's a backtest result . If there is a fast-forward icon next to the name, it's an optimization result .



3. (Optional) In the top-right corner, select the Show field and then select one of the options from the drop-down menu to filter the table by backtest or optimization results.
4. (Optional) In the bottom-right corner, click the Hide Error check box to remove backtest and optimization results from the table that had a runtime error.
5. (Optional) Use the pagination tools at the bottom to change the page.
6. (Optional) Click a column name to sort the table by that column.
7. Click a row in the table to open the results page of that backtest or optimization.

Rename Backtests

We give an arbitrary name (for example, "Smooth Apricot Chicken") to your backtest result files, but you can follow these steps to rename them:

1. Open the backtest history of the project.
2. Hover over the backtest you want to rename and then click the pencil icon that appears.

3. Enter the new backtest name and then click OK .

Backtesting > Research Guide

Introduction

QuantConnect aims to teach and inspire our community to create high-performing algorithmic trading strategies. We measure our success by the profits created by the community through their live trading. As such, we try to build the best quantitative research techniques possible into the product to encourage a robust research process.

Hypothesis-Driven Research

We recommend you develop an algorithmic trading strategy based on a central hypothesis. You should develop an algorithm hypothesis at the start of your research and spend the remaining time exploring how to test your theory. If you find yourself deviating from your core theory or introducing code that isn't based around that hypothesis, you should stop and go back to thesis development.

Wang et al. (2014) illustrate the danger of creating your hypothesis based on test results. In their research, they examined the earnings yield factor in the technology sector over time. During 1998-1999, before the tech bubble burst, the factor was unprofitable. If you saw the results and then decided to bet against the factor during 2000-2002, you would have lost a lot of money because the factor performed extremely well during that time.

Hypothesis development is somewhat of an art and requires creativity and great observation skills. It is one of the most powerful skills a quant can learn. We recommend that an algorithm hypothesis follow the pattern of cause and effect. Your aim should be to express your strategy in the following sentence:

A change in {cause} leads to an {effect}.

To search for inspiration, consider causes from your own experience, intuition, or the media. Generally, causes of financial market movements fall into the following categories:

• Human psychology
• Real-world events/fundamentals
• Invisible financial actions

Consider the following examples:

There are millions of potential alpha strategies to explore, each of them a candidate for an algorithm. Once you have chosen a strategy, we recommend exploring it for no more than 8-32 hours, depending on your coding ability.

Research Panel

We launched the Research Guide in 2019 to inform you about common quantitative research pitfalls. It displays a power gauge for the number of backtests performed, the number of parameters used, and the time invested in the strategy. These measures can give a ballpark estimate of the overfitting risk of the project. Generally, as a strategy becomes more overfit on historical data, it is less likely to perform well in live trading. These properties were selected based on the recommended best practices of the global quantitative research community.

Restricting Backtests

According to current research, the number of backtests performed on an idea should be limited to prevent overfitting. In theory, each backtest performed on an idea moves it one step closer to being overfitted as you are testing and selecting for strategies written into your code instead of being based on a central thesis. For more information, see the paper Probability of Backtest Overfitting (Bailey, Borwein, Jim Zho, & López de Prado, 2015).

QuantConnect does not restrict the number of backtests performed on a project, but we have implemented the counter as a guide for your reference. Your coding skills are a factor in how many backtests constitute overfitting, so if you are a new programmer you can increase these targets.

Reducing Strategy Parameters

With just a handful of parameters, it is possible to create an algorithm that perfectly models historical markets. Current research suggests keeping your parameter count to a minimum to decrease the risk of overfitting.

Limiting Research Time Invested

As you spend more time on one algorithm, research suggests you are more likely to be overfitting the strategy to the data. It is common to become attached to an idea and spend weeks or months to perform well in a backtest. Assuming you are a proficient coder who fully understands the QuantConnect API, we recommend no more than 16 hours of work per experiment. In theory, within two full working days, you should be able to test a single hypothesis thoroughly.

Parameter Detection

Using parameters is almost unavoidable, but a strategy trends toward being overfitted as more parameters get added or fine-tuned. Adding or optimizing parameters should only be done by a robust methodology such as walk-forward optimization . The parameter detection system is a general guide to inform you of how many parameters are present in the algorithm. It looks for criteria to warn that code is potentially a parameter. The following table shows the criteria for parameters:

The following table shows common expressions that are not parameters:

Overfitting

Overfitting occurs when you fine-tune the parameters of an algorithm to fit the detail and noise of backtesting data to the extent that it negatively impacts the performance of the algorithm on new data. The problem is that the parameters don't necessarily apply to new data and thus negatively impact the algorithm's ability to generalize and trade well in all market conditions. The following table shows ways that overfitting can manifest itself:

An algorithm that is dynamic and generalizes to new data is more valuable to funds and individual investors. It is more likely to survive across different market conditions and apply to new asset classes and markets.

Backtesting > Deployment

Introduction

Deploy a backtest to simulate your trading algorithm on our cloud servers. Since the same Lean engine is used to run backtests and live trading algorithms, it's easy to transition from backtesting to live trading once you are satisfied with the historical performance of your algorithm. If you find any issues with Lean, the historical data, or the website when running backtests, we'll resolve the issue.

Nodes

You need an idle backtesting node in your organization to deploy a backtest. You can view the status of all of your organization's nodes and select a specific node to use in the Resources panel of the IDE. Backtesting nodes that are more powerful can run faster backtests and backtest nodes with more RAM can handle more memory-intensive operations like training machine learning models, processing Options data, and managing large universes. The following table shows the specifications of the backtesting node models:

Refer to the Pricing page to see the price of each backtesting node model. The first organization on each account is given one free B-MICRO backtesting node. B-MICRO nodes have a 20-second delay when you launch backtests, but the delay is removed and the node is replaced when you upgrade the tier of your organization and add a new backtesting node .

The CPU nodes are available on a fair usage basis. The GPU nodes can be shared with a maximum of three members. Depending on the server load, you may use all of the GPU's processing power.

Concurrent Backtesting

Concurrent backtesting is the process of running multiple backtests at the same time within a single organization. Concurrent backtesting speeds up your strategy development because you don't have to wait while a single backtest finishes executing. You need multiple backtesting nodes in your organization to run concurrent backtests. The more backtesting nodes that your organization has, the more concurrent backtests you can execute. If you are trying to fine-tune your parameters , consider running a parameter optimization . If you run a parameter optimization job, you can run multiple backtests concurrently without having multiple backtest nodes.

The number of backtesting nodes that you can have in your organization depends on the tier of your organization. The following table shows the backtesting node quotas:

Logs

The amount of logs you can generate per backtest and per day depends on the tier of your organization. The following table shows the amount of logs you can generate on each tier:

Orders

The number of orders you can place in a single backtest depends on the tier of your organization. The following table shows the number of orders you can place on each tier:

Security

Your code is stored in a database, isolated from the internet. When the code leaves the database, it is compiled and obfuscated before being deployed to the cloud. If the cloud servers were compromised, this process makes it difficult to read your strategy.

As we've seen over recent years, there can never be any guarantee of security with online websites. However, we deploy all modern and common security procedures. We deploy nightly software updates to keep the server up to date with the latest security patches. We also use SSH key login to avoid reliance on passwords. Internally, we use processes to ensure only a handful of people have access to the database and we always restrict logins to never use root credentials.

See our Security and IP documentation for more information.

Build Projects

If the compiler finds errors during the build process, the IDE highlights the lines of code that caused the errors in red. Your projects will automatically build after each keystroke. To manually build a project, open the project and then click the Build icon. If the build process is unresponsive, try refreshing the page and building again. If the build process continues to be unresponsive, check our Status page or contact us .

Run Backtests

To run a backtest, open a project and then click the Backtest icon. If the project successfully builds, "Received backtest backtestName request" displays. If the backtest successfully launches, the IDE displays the backtest results page in a new tab. If the backtest fails to launch due to coding errors, the new tab displays the error. As the backtest executes, you can refresh or close the IDE without interfering with the backtest because it runs on our cloud servers.

Stop Backtests

To stop a running backtest, open the Resources panel , and then click the stop icon next to the backtest node. You can stop nodes that you are using, but you need stop node permissions to stop nodes other members are using.

Backtesting > Results

Introduction

The backtest results page shows your algorithm's performance. Review the results page to see how your algorithm has performed during the backtest and to investigate how you might improve your algorithm before live trading.

View Backtest Results

The backtest results page automatically displays when you deploy a backtest . The backtest results page presents the equity curve, trades, logs, performance statistics, and much more information.

The content in the backtest results page updates as your backtest executes. You can close or refresh the window without interrupting the backtest because the backtesting node processes on our servers. If you close the page, you can view all of the project's backtests to open the page again. Unless you explicitly make the backtest public, only you can view its results. If you delete a backtest result or you are inactive for 12 months, we archive your backtest results.

Runtime Statistics

The banner at the top of the backtest results page displays the runtime statistics of your backtest.

The following table describes the default runtime statistics:

To add a custom runtime statistic, call the SetRuntimeStatistic method with a name and value . The value argument can be a string or a number.

SetRuntimeStatistic(name, value);

self.SetRuntimeStatistic(name, value)

Built-in Charts

The backtest results page displays a set of built-in charts to help you analyze the performance of your algorithm. The following table describes the charts displayed on the page:

Custom Charts

The results page shows the custom charts that you create.

Supported Chart Types

We support the following types of charts:

If you use SeriesType.Candle and plot enough values, the plot displays candlesticks. However, the Plot method only accepts one numerical value per time step, so you can't plot candles that represent the open, high, low, and close values of each bar in your algorithm. The charting software automatically groups the data points you provide to create the candlesticks, so you can't control the period of time that each candlestick represents.

To create other types of charts, save the plot data in the ObjectStore and then load it into the Research Environment. In the Research Environment, you can create other types of charts with third-party charting packages .

Supported Markers

When you create scatter plots, you can set a marker symbol. We support the following marker symbols:

Chart Quotas

Custom charts are limited to 4,000 data points. Intensive charting requires hundreds of megabytes of data, which is too much to stream online or display in a web browser. If you exceed the quota, the Cloud Terminal displays the following message:

Exceeded maximum points per chart, data skipped

You can create up to 10 custom chart series per algorithm. If you exceed the quota, your algorithm stops executing and the Cloud Terminal displays the following message:

Exceeded maximum series count: Each backtest can have up to 10 series in total.

Demonstration

For more information about creating custom charts, see Charting .

Adjust Charts

You can manipulate the charts displayed on the backtest results page.

Toggle Charts

To display and hide a chart on the backtest results page, in the Select Chart section, click the name of a chart.

Toggle Chart Series

To display and hide a series on a chart on the backtest results page, click the name of a series at the top of a chart.

Adjust the Display Period

To zoom in and out of a time series chart on the backtest results page, perform either of the following actions:

• Click the 1m , 3m , 1y , or All period in the top-right corner of the chart.
• Click a point on the chart and drag your mouse horizontally to highlight a specific period of time in the chart.

If you adjust the zoom on a chart, it affects all of the charts.

After you zoom in on a chart, slide the horizontal bar at the bottom of the chart to adjust the time frame that displays.

Resize Charts

To resize a chart on the backtest results page, hover over the bottom-right corner of the chart. When the resize cursor appears, hold the left mouse button and then drag to the desired size.

Move Charts

To move a chart on the backtest results page, click, hold, and drag the chart title.

Refresh Charts

Refreshing the charts on the backtest results page resets the zoom level on all the charts. If you refresh the charts while your algorithm is executing, only the data that was seen by the Lean engine after you refreshed the charts is displayed. To refresh the charts, in the Select Chart section, click the reset icon.

Storage

You can store data in the ObjectStore during a backtest and then load the data into the Research Environment for further analysis. The Research Environment is a Jupyter notebook-based environment with access to many third-party libraries , so you can produce plots and display DataFrames in many more ways than the backtest results page supports.

Key Statistics

The backtest results page displays many key statistics to help you analyze the performance of your algorithm.

Overall Statistics

The Overview tab on the backtest results page displays tables for Overall Statistics and Rolling Statistics. The Overall Statistics table displays the following statistics:

• Probabilistic Sharpe Ratio (PSR)
• Total Trades
• Average Loss
• Drawdown
• Net Profit
• Loss Rate
• Profit-Loss Ratio
• Beta
• Annual Variance
• Tracking Error
• Total Fees
• Lowest Capacity Asset
• Sharpe Ratio
• Average Win
• Compounding Annual Return
• Expectancy
• Win Rate
• Alpha
• Annual Standard Deviation
• Information Ratio
• Treynor Ratio
• Estimated Strategy Capacity

Some of the statistics above are sampled throughout the backtest to produce a time series of rolling statistics. The time series are displayed in the Rolling Statistics table. You can download the data in the Overall Statistics and Rolling Statistics tables for further analysis.

Ranking

The backtest results page displays an Ranking section that shows the PSR and rank (percentile) of your algorithm.

The rank of your algorithm is calculated as

where $CDF$ is the normal cumulative distribution function and $PSR_{algo}$ is your algorithm's PSR. $\overline{PSR}$ and $\sigma_{PSR}$ are the mean PSR and the standard deviation of PSR values, respectively, calculated from all of the backtests that have the following attributes:

• Occurred in the last 30 days
• Had more than 90 tradable days
• Had a PSR value in the interval (0, 100)

Research Guide

For information about the Research Guide, see Research Guide .

Reports

The backtest report provides a summary of your algorithm's performance in PDF format. Follow these steps to generate one:

1. Open the backtest results page of the backtest for which you want to generate a report.
2. Click the Report tab.
3. If the project doesn't have a description, enter one and then click Save .
4. Click Download Report .

The report may take a minute to generate.

5. If the browser says that the report is being generated, repeat step 4.

Orders

The backtest results page displays the orders of your algorithm and you can download them to your local machine.

View in the GUI

To see the orders that your algorithm created, open the backtest results page and then click the Orders tab. If there are more than 10 orders, use the pagination tools at the bottom of the Orders Summary table to see all of the orders. Click on an individual order in the Orders Summary table to reveal additional information regarding the following:

• Submissions
  
• Fills
• Partial fills
• Updates
• Cancellations
• Option contract exercises and expiration

The timestamps in the Order Summary table are based in Eastern Time (ET).

Download CSV

To download the orders in CSV format, open the backtest results page, click the Orders tab, and then click Download Orders . The content of the CSV file is the content displayed in the Orders Summary table when the table rows are collapsed. To retrieve all of the content in the Orders Summary table, download the backtest results JSON file .The timestamps in the CSV and JSON files are based in Coordinated Universal Time (UTC).

Insights

The backtest results page displays the insights of your algorithm and you can download them to your local machine.

View in the GUI

To see the insights your algorithm has emitted, open the backtest result page and then click the Insights tab. If there are more than 10 insights, use the pagination tools at the bottom of the Insights Summary table to see all of the insights. The timestamps in the Insights Summary table are based in Eastern Time (ET).

Download JSON

To download the insights in JSON format, open the backtest result page, click the Insights tab, and then click Download Insights . The timestamps in the CSV file are based in Coordinated Universal Time (UTC).

Logs

The backtest results page displays the logs of your backtest and you can download them to your local machine. The timestamps of the statements in the log file are based in your algorithm time zone .

View in the GUI

To see the log file that was created throughout a backtest, open the backtest result page and then click the Logs tab.

Download Log File

To download the log file that was created throughout a backtest, open the backtest result page, click the Logs tab, and then click Download Logs .

Project Files

The backtest results page displays the project files used to run the backtest. To view the files, click the Code tab. By default, the main.py or Main.cs file displays. To view other files in the project, click the file name and then select a different file from the drop-down menu.

Share Results

The backtest results page enables you to share your backtest results. You need to make a backtest public in order to share it. To make a backtest public, on the backtest results page, click the Share tab and then click Make Public . Once you make a backtest public, the Share tab displays a link to the backtest report , a link to an embedded backtest result, and a script to embed the embedded backtest result into a website.

The following widget is an example of an embedded backtest result:

To attach the embedded backtest result to a forum discussion, see Create Discussions or Post Comments .

After you've made your backtest results public, the results are always stored, anyone with the link can access the results, and the results can't be made private again because someone may have already cloned your project.

Download Results

You can download the following information from the backtest results page:

• Runtime statistics
• Charts
• The data in the Overview tab
• The data in the Orders tab

To download the preceding information, open the backtest results page, click the Overview tab, and then click Download Results .

View All Backtests

Follow these steps to view all of the backtests of a project:

1. Open the project that contains the backtests you want to view.
2. In the top-right corner of the IDE, click the Backtest Results icon.
   

A table containing all of the backtest results for the project is displayed. If there is a play icon to the left of the name, it's a backtest result . If there is a fast-forward icon next to the name, it's an optimization result .



3. (Optional) In the top-right corner, select the Show field and then select one of the options from the drop-down menu to filter the table by backtest or optimization results.
4. (Optional) In the bottom-right corner, click the Hide Error check box to remove backtest and optimization results from the table that had a runtime error.
5. (Optional) Use the pagination tools at the bottom to change the page.
6. (Optional) Click a column name to sort the table by that column.
7. Click a row in the table to open the results page of that backtest or optimization.

Rename Backtests

We give an arbitrary name (for example, "Smooth Apricot Chicken") to your backtest result files, but you can follow these steps to rename them:

1. Hover over the backtest you want to rename and then click the pencil icon that appears.

2. Enter the new backtest name and then click OK .

Clone Backtests

Hover over the backtest you want to clone, and then click the clone icon that appears to clone the backtest.

A new project is created with the backtest code files.

Delete Backtests

Hover over the backtest you want to delete, and then click the trash can icon that appears to delete the backtest.

Errors

If a backtest produces more than 700 MB of data, then LEAN can't upload the results and the backtest results page appears empty.

Backtesting > Debugging

Introduction

The debugger is a built-in tool to help you debug coding errors while backtesting. The debugger enables you to slow down the code execution, step through the program line-by-line, and inspect the variables to understand the internal state of the program.

Breakpoints

Breakpoints are lines in your algorithm where execution pauses. You need at least one breakpoint in your code files to start the debugger. Open a project to start adjusting its breakpoints.

Add Breakpoints

Click to the left of a line number to add a breakpoint on that line.

Edit Breakpoint Conditions

Follow these steps to customize what happens when a breakpoint is hit:

1. Right-click the breakpoint and then click Edit Breakpoint... .
2. Click one of the options in the following table:

Enable and Disable Breakpoints

To enable a breakpoint, right-click it and then click Enable Breakpoint .

To disable a breakpoint, right-click it and then click Disable Breakpoint .

Follow these steps to enable and disable all breakpoints:

1. In the right navigation menu, click the Run and Debug icon.
2. In the Run and Debug panel, hover over the Breakpoints section and then click the Toggle Active Breakpoints icon.

Remove Breakpoints

To remove a breakpoint, right-click it and then click Remove Breakpoint .

Follow these steps to remove all breakpoints:

1. In the right navigation menu, click the Run and Debug icon.
2. In the Run and Debug panel, hover over the Breakpoints section and then click the Remove All Breakpoints icon.

Launch Debugger

Follow these steps to launch the debugger:

1. Open the project you want to debug.
2. In your project's code files, add at least one breakpoint.
3. Click the Debug icon.

If the Run and Debug panel is not open, it opens when the first breakpoint is hit.

Control Debugger

After you launch the debugger, you can use the following buttons to control it:

Button	Name	Default Keyboard Shortcut	Description
	Continue		Continue execution until the next breakpoint
	Step Over	Alt+F10	Step to the next line of code in the current or parent scope
	Step Into	Alt+F11	Step into the definition of the function call on the current line
	Restart	Shift+F11	Restart the debugger
	Disconnect	Shift+F5	Exit the debugger

Inspect Variables

After you launch the debugger, you can inspect the state of your algorithm as it executes each line of code. You can inspect local variables or custom expressions. The values of variables in your algorithm are formatted in the IDE to improve readability. For example, if you inspect a variable that references a DataFrame, the debugger represents the variable value as the following:

Local Variables

The Variables section of the Run and Debug panel shows the local variables at the current breakpoint. If a variable in the panel is an object, click it to see its members. The panel updates as the algorithm runs.

Follow these steps to update the value of a variable:

1. In the Run and Debug panel, right-click a variable and then click Set Value .
2. Enter the new value and then press Enter .

Custom Expressions

The Watch section of the Run and Debug panel shows any custom expressions you add. For example, you can add an expression to show the current date in the backtest.

Follow these steps to add a custom expression:

1. Hover over the Watch section and then click the plus icon that appears.
2. Enter an expression and then press Enter .

Backtesting > Report

Introduction

Reports provide a summary of your algorithm's performance. They outline key statistics, returns, and performance during various market crises. You can generate a performance report after your backtest completes and download the report as a PDF.

Key Statistics

The top of the backtest report displays statistics to summarize your algorithm's performance. The following table describes the key statistics in the report:

Returns

The backtest report displays charts to show the algorithm's returns per trade, per day, per month, per year, and the cumulative returns over the backtest.

Returns per Trade

This chart displays a histogram that shows the distribution of returns per trade over the backtesting period.

Daily Returns

This chart displays the returns of each day. Blue bars represent profitable days and gray bars represent unprofitable days.

Monthly Returns

This chart displays the return of each month. We convert the original equity curve series into a monthly series and calculate the returns of each month. Green cells represent months with a positive return and red cells represent months with a negative return. Months that have a greater magnitude of returns are represented with darker cells. Yellow cells represent months with a relatively small gain or loss. White rectangles represent months that are not included in the backtest period. The values in the cells are percentages.

Annual Returns

This chart displays the return of each year. We calculate the total return within each year and represent each year with a blue bar. The red dotted line represents the average of the annual returns.

Cumulative Returns

This chart displays the cumulative returns of your algorithm. The blue line represents your algorithm and the gray line represents the benchmark.

Asset Allocation

This chart displays a time-weighted average of the absolute holdings value for each asset that entered your portfolio during the backtest. When an asset has a percentage that is too small to be shown in the pie chart, it is incorporated into an "Others" category.

Drawdown

This chart displays the peak-to-trough drawdown of your portfolio's equity throughout the backtest period. The drawdown of each day is defined as the percentage loss since the maximum equity value before the current day. The drawdowns are calculated based on daily data. The top 5 drawdown periods are marked in the chart with different colors.

Rolling Statistics

The backtest report displays time series for your portfolio's rolling beta and Sharpe ratio .

Rolling Portfolio Beta

This chart displays the rolling portfolio beta over trailing 6 and 12 month periods. The light blue line represents the 6 month period and the dark blue line represents the 12 month period.

Rolling Sharpe Ratio

This chart displays the rolling portfolio Sharpe ratio over trailing 6 and 12 month periods. The light blue line represents the 6 month period and the dark blue line represents the 12 month period.

Exposure

The backtest report displays time series for your portfolio's overall leverage and your portfolio's long-short exposure by asset class.

Leverage

This chart displays your algorithm's utilization of leverage over time.

Long-Short Exposure By Asset Class

This chart displays your algorithm's long-short exposure by asset class over time.

Crisis Events

This set of charts displays the cumulative returns of your algorithm and the benchmark during various historical periods. The blue line represents the cumulative returns of your algorithm and the grey line represents the cumulative return of the benchmark. The report only contains the crisis event that occurred during your algorithm's backtest period. The following table shows the crisis events that may be included in your backtest report:

Backtesting > Engine Performance

Introduction

A set of benchmark algorithms are periodically run to test the status and speed of the Lean master branch. View the Lean Performance Benchmark page to see the results. The chart at the top of the page shows the data points per second for each of the benchmark algorithms. The table at the bottom of the page shows the benchmark algorithms that are run to produce the results.

Datasets

Datasets > Navigating the Market

Introduction

Datasets are a stream of data points you use in your algorithms to make trading decisions and fill orders. Our Dataset Market is a portal where we curate datasets available for use in your algorithms. It includes price, fundamental, and alternative datasets. Consider using fundamental and alternative datasets to incorporate more information in your trading decisions. Fundamental and alternative datasets contain information that is not present in the price. Price data is commonly researched for trading ideas, so you may find it easier to discover alpha in other types of datasets.

The Dataset Market enables you to easily load datasets into your trading algorithms for use in the cloud or locally. The datasets come configured ready to integrate into your research and backtesting without any need for cleaning. The datasets in our market are vetted by the QuantConnect team to be high-quality, contain actionable information, and be free of survivorship-bias. Our Dataset Market is growing quickly, as new datasets are added frequently.

The Dataset Market is a place where you can view, subscribe to, and download datasets. We provide an example algorithm for each dataset that you can clone to easily get started using the new dataset. We also provide an example research notebook for most datasets to demonstrate how to use the dataset in the Research Environment. You can always view the dataset reviews to learn about the experience other members have had using the dataset. This page explains the layout of the Dataset Market to help you navigate the marketplace.

View All Listings

The Dataset Market displays all our supported datasets. To view the page, in the top navigation bar, click Data.

Each dataset displays the name, description, coverage, start date, and price of the dataset. Coverage is the number of assets, securities, contracts, currency pairs, or articles that are included in the dataset. To view the listing page of a dataset, click the dataset.

You can search the market by applying filters or searching for keywords.

Filter Listings by Category

Click the Category: All field and then select a category from the drop-down menu to only display datasets in that category.

Filter Listings by Delivery Options

Click the Delivery Options: All field and then select an option from the drop-down menu to only display datasets with that delivery option.

Search for Keywords

Enter keywords in the search bar to only display datasets that contain those keywords.

Homepage

The homepage of a dataset listing displays everything that you need to get started using the dataset. The following table describes the tabs on the homepage:

The following table describes the sections displayed under the About tab for most datasets:

Sidebar

The sidebar of the dataset listing provides a brief summary of the dataset. The following table describes the summary content:

Documentation

The Documentation tab on a dataset listing demonstrates how to use the dataset. The documentation covers requesting the data, accessing the data in your algorithm, and performing history requests. We provide documentation in C# and Python so you can easily integrate the dataset into your algorithms, regardless of the programming language you use.

The Documentation tab also has a Data Point Attributes section to show the dataset's attributes. If an attribute has a custom data type, you can click the attribute to view the attributes of the custom data type.

Factor Research

Some dataset listings have a Research tab that displays an analysis of the data point attributes in the dataset. Follow these steps to clone the example research notebook of a dataset:

1. Log in to the Algorithm Lab.
2. Open a dataset listing page .
3. Click the Research tab, if available.
4. Click Clone This Notebook .
5. Click Clone Algorithm .

Examples

The Examples tab on a dataset listing shows how to use the dataset in a trading algorithm. We provide examples in C# and Python for both of the classic and framework algorithm designs. Copy-paste these example algorithms to jumpstart your strategy research. Consider adjusting the strategy to make it your own or using the parameter optimization feature to improve the performance of the algorithms.

Licenses

The Licensing tab shows the available licenses for the dataset. Each dataset comes with its own licensing requirements, depending on the data vendor. For more information about licensing types, see Licensing .

Reviews

The bottom of the dataset listing page shows reviews published by QuantConnect members. You can sort, filter, and write dataset reviews.

Sort Reviews

Open a dataset listing page , click the Most Recent field, and then select a metric from the drop-down menu to sort the reviews by that metric.

Filter Reviews

Open a dataset listing page , click the All field, and then select a number of stars from the drop-down menu to only display the reviews with that rating.

Write Reviews

Follow these steps to write a review:

1. Log in to the Algorithm Lab.
2. Open a dataset listing page .
3. At the bottom of the page, select a number of stars to give your review.
4. Write your review.
5. Click Submit Review .

Datasets > Categories

Introduction

Dataset categories are a way to identify different types of datasets in our Dataset Market. We provide many price, fundamental, and alternative datasets for you to use in your research and trading. Datasets that include factors outside of the security price are less researched, so they may have more alpha to discover. Incorporate alternative datasets into your algorithms so that you can make more informed trading decisions.

Geospatial

Geospatial data is data related to objects that have a position in the world.

Commerce

Commerce data is data on customer and business behavior.

Financial Market

Financial market data is data on the trading activity on exchanges.

Consumer

Consumer data is data on all aspects of consumers, including online shopping behaviors, consumer demographics, and consumer attitudes.

B2B

Business-to-business (B2B) data is data on businesses that sell goods and services to other businesses.

Transport and Logistics

Transport and logistics data is data on the transportation of goods and the logistics of the transportation.

Environmental

Environmental data is data on the state of the environment, including meteorological data, biodiversity data, and pollution data.

Credit Rating

Credit rating data is data on the financial position of individuals and businesses.

Real Estate

Real estate data is data on residential and commercial real estate, including ownership data, real estate listing data, and real estate demographic data.

Web

Web data is data on the behavior of internet users.

Legal

Legal data is data on the law, including new regulations, government website data, and litigation history.

Health Care

Healthcare data is data on patient-doctor visits, including claims data, fitness wearables data, and health record data.

Entertainment

Entertainment data is data on the media consumption preferences and behaviors of consumers.

Energy

Energy data is data on energy production, distribution, and consumption.

Industry

Industry data is data on various groupings in the economy.

Political

Political data is data that's collected on political activity, including election votes and political party policies.

News and Events

News and events data is data that's collected from news providers regarding current events.

Datasets > Data Issues

Introduction

Data issues are incorrect or missing values in a dataset. These issues are generally a result of human error or from mistakes in the data collection process. Data issues can be reported by any QuantConnect member. When data issues are reported and verified, our Data Team works to quickly resolve them. Thanks to the communal efforts of the QuantConnect members, the QuantConnect data is reviewed and fixed by over 235,000 people, giving you a very high-quality source of data.

Common Issues

Data issues can occur in both historical and live data feeds. Some common examples of data issues include the following:

• Missing or incorrect values
• Splits and dividends
• Listings and delistings
• Ticker changes

View Current Issues

You can view a list of all the current data issues under the Data Issues tab in the community forum . Before you report a new issue, review the list of current issues to ensure that the issue is not already reported. The number of open data issues can sometimes be large, but our Data Team works on resolving them as quickly as possible while prioritizing the most important ones.

Report New Issues

When all of the QuantConnect members report the data issues that they find, we can ensure the datasets are high quality for everyone. The easier it is for our Data Team to detect and reproduce the issues you report, the faster we can resolve them. If you encounter an issue with live data, email us a description of the issue. If you find an issue with the historical data of a dataset, follow these steps to report it:

1. Log in to the Algorithm Lab.
2. Open the Data Explorer Issues page.
3. On the Data Explorer page, fill out the form.
4. Follow these steps to attach a backtest or notebook that demonstrates the issue:
1. Click Attach Backtest .
2. Click the Project field and then select the project from the drop-down menu.
3. Click the Backtest field and then select the backtest from the drop-down menu.
5. Click Publish .

Datasets > Misconceptions

Introduction

Some data issues are reported that aren't actually data issues. Instead, they are from a misunderstanding of how the data is collected, timestamped, formatted, and normalized. These misunderstandings are caused by assumptions that the data should be the same across different platforms, should have the same timezones, should be timestamped a certain way, and should be normalized the same as other data sources.

Cross-Platform Discrepancies

You may find our data can sometimes be slightly different from the data that's displayed on other platforms. Most of the differences occur because our data is institutional quality while a lot of the other platforms use a cheaper alternative. We use the Consolidated Tape Association (CTA) and Unlisted Trading Privileges (UTP) tick feeds, which cover the entire US tick feed. In contrast, most charting websites use the Better Alternative Trading System (BATS), which has very permissive display policies but only covers about 6-7% of the total market volume . Our tick feed doesn't include over-the-counter (OTC) trades, but the data on other platforms like Yahoo Finance include OTC trades.

Timezone Differences

Datasets all have different timezones. Most price datasets are timestamped in Eastern Time (ET). However, Future markets have more exotic timezones, depending on where the Future contract is trading. QuantConnect allows the raw data to be in different timezones. For US Equities, the timezone is ET. For Oanda Forex prices, the timezone is Coordinated Universal Time (UTC). In contrast, other charting platforms may display Oanda data with ET timestamps. Oanda Forex uses UTC, but Oanda CFD uses timezones relative to each of the CFD products that Oanda lists. QuantConnect accurately reflects all of these timezones from the relative markets that they’re trading.

Misaligned Timestamps

Every piece of data has a period. Some data is near-instantaneous, like tick data. Other data has a longer period, like second, minute, hour, and daily bars. QuantConnect delivers this data to your algorithms at the end of the period to ensure that lookahead bias doesn’t occur. When you look at the Time property of your algorithm, the period has already ended, so it looks as if the data is offset by one period. To compare the timestamps of our data to other data, use the Time property of the current bar. The Time property of the bar is the start of the bar and the EndTime property is the end of the bar. If you use Python and request historical data, the time index in the DataFrame that's returned maps to the EndTime of the respective bar. For more information about timestamps, see Time Modeling .

Data Normalization

The data normalization mode defines how historical data is adjusted to accommodate for splits, dividends, and continuous Future contract roll overs. When you compare the data in the Dataset Market to data that's hosted on other platforms, the data may have different values because a different data normalization mode is being used to adjust the data. Ensure datasets are using the same normalization mode before reporting data issues. The most common way to recognize this bug is by comparing the two price series and seeing them significantly deviate in the past. The following data normalization modes are available:

Adjusted Prices

By default, LEAN adjusts US Equity data for splits and dividends to produce a smooth price curve. We use the entire split and dividend history to adjust historical prices. This process ensures you get the same adjusted prices, regardless of the backtest end date.

Backtest differences occur when you run backtests before a split or dividend occurs in live trading and then run the same backtest after it occurs. The second time you run the backtest, the adjusted prices will be different so it can cause different backtest results. The difference can be significant in large universes because of multiple corporate actions and the cummulative effect of orders with a small difference.

Opening and Closing Auctions

The opening and closing price of the day is set by very specific opening and closing auction ticks. When a stock like Apple is listed, it’s listed on Nasdaq. The open auction tick on Nasdaq is the price that’s used as the official open of the day. NYSE, BATS, and other exchanges also have opening auctions, but the only official opening price for Apple is the opening auction on the exchange where it was listed.

We set the opening and closing prices of the first and last bars of the day to the official auction prices. This process is used for second, minute, hour, and daily bars for the 9:30 AM and 4:30 PM Eastern Time (ET) prices. In contrast, other platforms might not be using the correct opening and closing prices.

The official auction prices are usually emitted 2-30 seconds after the market open and close. We do our best to use the official opening and closing prices in the bars we build, but the delay can be so large that there isn't enough time to update the opening and closing price of the bar before it's injected into your algorithms. For example, if you subscribe to second resolution data, we wait until the end of the second for the opening price but most second resolution data won’t get the official opening price. If you subscribe to minute resolution data, we wait until the end of the minute for the opening auction price. Most of the time, you’ll get the actual opening auction price with minute resolution data, but there are always exceptions. Nasdaq and NYSE can have delays in publishing the opening auction price, but we don’t have control over those issues and we have to emit the data on time so that you get the bar you are expecting.

Live and Backtesting Differences

In live trading, bars are built using the exchange timestamps with microsecond accuracy. This microsecond-by-microsecond processing of the ticks can mean that the individual bars between live trading and backtesting can have slightly different ticks. As a result, it's possible for a tick to be counted in different bars between backtesting and live trading, which can lead to bars having slightly different open, high, low, close, and volume values.

There is a delay in when new live data is available for backtesting. It's normally available after 24-48 hours. If you need to closely monitor new data, use live paper trading .

Datasets > Licensing

Introduction

You can license datasets in the Dataset Market to use in the cloud for live trading and research or to download locally. We have contracts with the data providers in the Dataset Market that define the costs of each license. All of the datasets can be used in QuantConnect Cloud. There are some free licenses, but we can't freely redistribute most of the datasets.

Free

We strive to make as many datasets available for free to use in the cloud and to download locally as possible. We also list proprietary datasets that are available for license using our cloud or download paid licensing. Most price data is free for use in the cloud.

Cloud

If you have a Cloud license for a dataset, you can access the dataset in the Algorithm Lab for research, backtests, and live trading. The cost of the license is added to your monthly bill, which you can pay with your organization's credit card or QuantConnect Credit balance. With one Cloud license for a dataset, all of the members in your organization can access the dataset in the cloud.

Add Cloud Access

You need an organization above the Free tier to purchase cloud access to datasets.

Follow these steps to add cloud access to datasets:

1. Log in to the Algorithm Lab.
2. Open the listing page of a dataset for which you want to gain cloud access.
3. On the dataset listing page, click the Pricing tab.
4. Under the Cloud Access section, click SUBSCRIBE .
5. On the Pricing page, click Proceed to Checkout .

Remove Cloud Access

Follow these steps to remove cloud access to datasets:

1. Open the organization homepage .
2. Click Edit Plan .
3. On the pricing page, click the Customize Plan > Build Your Own Pack > Data tab.
4. In the Datasets Subscriptions section, next to the name of the dataset you want to remove, click Added .
5. Click Proceed to Checkout .

Download

If you have a Download license, you can store datasets on your local machine. This download is for the licensed organization's internal LEAN use only and cannot be redistributed or converted in any format. If you study the data and produce some charts, you may share images of the charts online if the original data can't be to reconstructed from the image. The cost of the license depends on the dataset and it's calculated on a per-file or per-day basis. For more information about downloading datasets, see Downloading Data .

Datasets > Vendors

Introduction

We welcome submissions of new datasets by data companies. Review our submission process to learn how to get your dataset listed on QuantConnect.

Submission Criteria

Datasets must meet the following criteria to be considered for the Datasets Market:

• A well-defined dataset with a clear and static vision for the data to minimize churn or changes.
• Robust ticker and security links to ensure the tickers are tracked well through time. ISIN, FIGI, or point-in-time tickers are supported.
• Sufficient organizational funding to ensure at least 1 year of operation.
• Reliable API with no dead links or 502 errors.
• Consistent delivery schedule with data delivered on time and in time for trading.
• Consistent data format with notifications and lead time on data format updates.
• At least 1 year of historical data.
• Free of survivorship bias.
• Good documentation of the dataset.

If the dataset is alternative data, in addition to the criteria above, the dataset must practice the Alternative Investment Standards defined by the non-profit Investment Data Standards Organization (IDSO). The Alternative Investment Standards outline the rules and best practices for collecting and distributing alternative datasets. For example, the IDSO Web Crawling Best Practices publication states that “a data collector should assess a website according to the terms of its robots.txt”.

Review Process

The dataset review process is in place to ensure that your dataset matches the submission criteria. The review process can take several weeks. If your dataset is accepted, we'll begin integrating it into the Datasets Market. If your dataset is rejected, we'll provide feedback to help you get the dataset accepted.

Contributing Datasets

We encourage you to integrate your own datasets. To integrate your dataset, see the Contributing Datasets tutorial. The integration process only takes about 1 day of engineering.

Give Free Trials

Follow these steps to give a free trial of your dataset to a QuantConnect organization:

1. Log in to the Algorithm Lab.
2. Open the Dataset Market .
3. On the Datasets page, click the dataset that you want to give as a trial.
4. In the right sidebar of the dataset listing, click Dashboard .
5. On the dataset dashboard page, click give trial .
6. In the Give Trial to Organization window, enter the expriation date of the trial and then click OK .
7. In the Organization Owners Email window, enter the email address of the member who owns the organization that you want to grant the trial.
8. If the email address you entered owns mulitple organizations, in the Select target organization window, select an organization from the drop-down menu and then click OK .
9. Click OK .

Contacting Our Team

If you want to discuss integrating your dataset into the Datasets Market, contact us . We look forward to working with you so that we can provide QuantConnect members with access to more high-quality datasets.

Live Trading

Live Trading > Getting Started

Introduction

A live algorithm is an algorithm that trades in real-time with real market data. QuantConnect enables you to run your algorithms in live mode with real-time market data. Deploy your algorithms using QuantConnect because our infrastructure is battle-tested. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. The algorithms that our members create are run on co-located servers and the trading infrastructure is maintained at all times by our team of engineers. It's common for members to achieve 6-months of uptime with no interruptions.

Deploy Live Algorithms

The following video demonstrates how to deploy live paper trading algorithms:

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live paper trading algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Paper Trading from the drop-down menu.
4. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
5. (Optional) Follow these steps to start the algorithm with existing cash holdings ( see video ):
1. In the Algorithm Cash State section, click Show .
2. Click Add Currency .
3. Enter the currency ticker (for example, USD or BTC) and a quantity.
6. (Optional) Follow these steps to start the algorithm with existing position holdings ( see video ):
1. In the Algorithm Holdings State section, click Show .
2. Click Add Holding .
3. Enter the symbol ID, symbol, quantity, and average price.
7. (Optional) Set up notifications .
8. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

9. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays.

To deploy a live algorithm with a different brokerage, see the Deploy Live Algorithms section of the brokerage integration documentation .

Stop Live Algorithms

The live trading results page has a Stop button to immediately stop your algorithm from executing. When you stop a live algorithm, your portfolio holdings are retained. Stop your algorithm if you want to perform any of the following actions:

• Update your project's code files
• Upgrade the live trading node
• Update the settings you entered into the deployment wizard
• Place manual orders through your brokerage account instead of the web IDE

Furthermore, if you receive new securities in your portfolio because of a reverse merger, you also need to stop and redeploy the algorithm.

LEAN actively terminates live algorithms when it detects interference outside of the algorithm's control to avoid conflicting race conditions between the owner of the account and the algorithm, so avoid manipulating your brokerage account and placing manual orders on your brokerage account while your algorithm is running. If you need to adjust your brokerage account holdings, stop the algorithm, manually place your trades, and then redeploy the algorithm.

Follow these steps to stop your algorithm:

1. Open your algorithm's live results page .
2. Click Stop .
3. Click Stop again.

Liquidate Live Algorithms

The live results page has a Liquidate button that acts as a "kill switch" to sell all of your portfolio holdings. If your algorithm has a bug in it that caused it to purchase a lot of securities that you didn't want, this button let's you easily liquidate your portfolio instead of placing many manual trades. When you click the Liquidate button, if the market is open for an asset you hold, the algorithm liquidates it with market orders. If the market is not open, the algorithm places market on open orders. After the algorithm submits the liquidation orders, it stops executing.

Follow these steps to liquidate your positions:

1. Open your algorithm's live results page .
2. Click Liquidate .
3. Click Liquidate again.

Live Trading > Brokerages

Live Trading > Brokerages > Binance

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Binance was founded by Changpeng Zhao in 2017 with the goal to "increase the freedom of money globally". Binance provides access to trading Crypto through spot markets and perpetual Futures. They serve clients with no minimum deposit when depositing Crypto. Binance also provides an NFT marketplace, a mining pool, and services to deposit Crypto coins in liquidity pools to earn rewards.

To view the implementation of the Binance brokerage integration, see the Lean.Brokerages.Binance repository .

Account Types

Binance supports cash and margin accounts for spot trades, but only supports margin accounts for Futures trades. Binance US only supports cash accounts. To set the account type in an algorithm, see the Binance brokerage model documentation .

Create an Account

Follow the account creation wizard on the Binance.com or Binance.us website to create a Binance account.

You will need API credentials to deploy live algorithms with your brokerage account. After you open your account, create API credentials and store them somewhere safe. As you create credentials, make the following configurations:

• Select the Restrict access to trusted IPs only check box and then enter our IP address, 15.235.119.112.
• If you are going to trade Crypto Futures, select the Enable Futures check box.

Paper Trading

Binance supports paper trading through the Binance Spot Test Network. You don't need a Binance account to create API credentials for the Spot Test Network.

Follow these steps to set up paper trading with the Binance Spot Test Network:

1. Log in to the Binance Spot Test Network with your GitHub credentials.
2. In the API Keys section, click Generate HMAC_SHA256 Key .
3. Enter a description and then click Generate .
4. Store your API key and API key secret somewhere safe.

Paper trading Binance Crypto Futures or with Binance US isn't currently available.

Sub-Accounts

Our Binance and Binance US integrations don't support trading with sub-accounts. You must use your main account.

Asset Classes

Our Binance integration supports trading Crypto and Crypto Futures .

AddCrypto("BTCUSDT", Resolution.Minute, Market.Binance);
AddCryptoFuture("BTCUSD", Resolution.Minute, Market.Binance);
AddCrypto("BTCUSDT", Resolution.Minute, Market.BinanceUS);

self.AddCrypto("BTCUSDT", Resolution.Minute, Market.Binance)
self.AddCryptoFuture("BTCUSD", Resolution.Minute, Market.Binance)

Our Binance US integration supports trading Crypto .

AddCrypto("BTCUSDT", Resolution.Minute, Market.BinanceUS);

self.AddCrypto("BTCUSDT", Resolution.Minute, Market.BinanceUS)

If you call the SetBrokerageModel method with the correct BrokerageName , then you don't need to pass a Market argument to the AddCrypto method because the brokerage model has a default market .

Data Feeds

Our Crypto data feed provides Crypto data during live trading.

Orders

We model the Binance and Binance US APIs by supporting several order types, supporting order properties, and not supporting order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our Binance and Binance US integrations support:

Order Type	Crypto	Crypto Futures
MarketOrder
LimitOrder
StopLimitOrder

Order Properties

We model custom order properties from the Binance and Binance US APIs. The following table describes the members of the BinanceOrderProperties object that you can set to customize order execution:

Updates

We model the Binance and Binance US APIs by not supporting order updates, but you can cancel an existing order and then create a new order with the desired arguments. For more information about this workaround, see the Workaround for Brokerages That Don’t Support Updates .

Fees

To view the Binance or Binance US trading fees, see the Trading Fees page on the Binance.com website or the Fee Structure page on the Binance.us website. To view how we model their fees, see Fees . The Binance Spot Test Network does not charge order fees.

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements. If you trade Crypto Perpetual Futures, we model the margin cost and payments of your Crypto Future holdings by directly adjusting your portfolio cash. For more information about Futures margin interest modeling, see the Binance Futures Model .

Slippage

Orders through Binance and Binance US do not experience slippage in backtests. In live trading, your orders may experience slippage.

To view how we model Binance and Binance US slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model Binance and Binance US order fills, see Fills .

Settlements

Trades settle immediately after the transaction

To view how we model settlement for Binance and Binance US trades, see Settlement .

Security and Stability

When you deploy live algorithms with Binance or Binance US, we don't save your brokerage account credentials.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the Binance and Binance US brokerages:

Binance

Binance US

Virtual Pairs

All fiat and Crypto currencies are individual assets. When you buy a pair like BTCUSD, you trade USD for BTC. In this case, LEAN removes some USD from your portfolio cashbook and adds some BTC. The virtual pair BTCUSD represents your position in that trade, but the virtual pair doesn't actually exist. It simply represents an open trade. When you deploy a live algorithm, LEAN populates your cashbook with the quantity of each currency, but it can't get your position of each virtual pair.

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click one of the Binance exchanges from the drop-down menu.
4. Enter your API key and secret.

To generate your API credentials, see Account Types . Your account details are not saved on QuantConnect.

5. Click on the Environment field and then click one of the environments.

The following table shows the supported environments:

Environment	Description
Real	Trade with real money
Demo	Trade with paper money through the Binance Global brokerage

6. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
7. (Optional) Set up notifications .
8. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

9. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Bitfinex

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Bitfinex was founded by Giancarlo Devasini and Raphael Nicolle in 2012 with the goal to "give our users the ultimate cryptocurrency trading experience". Bitfinex provides access to trading Crypto for clients outside prohibited jurisdictions with no minimum deposit to set up an account. If you fund your account with fiat currency, they enforce a 10,000 minimum for USD, EUR, and GBP. However, if you fund your account with Crypto, they do not enforce a minimum deposit. Bitfinex also provides Crypto staking, a mobile app, and an unrealized profit leaderboard for the traders on the platform. Bitfinex has always been at the forefront of technological innovation in digital asset trading.

To view the implementation of the Bitfinex brokerage integration, see the Lean.Brokerages.Bitfinex repository .

Account Types

Bitfinex supports cash and margin accounts. To set the account type in an algorithm, see the Bitfinex brokerage model documentation .

Use AccountType.Cash to connect to your Exchange wallet or AccountType.Margin to connect to your Margin wallet. You can not connect to your Funding or Capital Raise wallet. If you provide the wrong AccountType to the SetBrokerageModel method, you may connect to an empty wallet, causing Lean to throw a warning. If you have a currency in your wallet that ends with "F0", it will not load into your CashBook .

Create an Account

Follow the account creation wizard on the Bitfinex website to create a Bitfinex account.

You will need API credentials to deploy live algorithms. After you have an account, create API credentials and store them somewhere safe.

Paper Trading

Bitfinex supports paper trading with only the TESTBTCTESTUSD and TESTBTCTESTUSDT securities. Follow these steps to paper trade with Bitfinex:

1. Create a paper trading sub-account and refill the paper balance For instructions, see Paper Trading at Bitfinex on the Bitfinex website.
2. Create an API key for your sub-account. For instructions, see How to create and revoke a Bitfinex API Key on the Bitfinex website.
3. Use AccountType.Cash in your algorithms.

To paper trade securities other than TESTBTCTESTUSD and TESTBTCTESTUSDT, follow these steps to simulate paper trading with the QuantConnect Paper Trading brokerage:

1. In the Initialize method of your algorithm, add one of the preceding SetBrokerageModel method calls.
2. Deploy your algorithm with the QuantConnect Paper Trading brokerage .

Asset Classes

Our Bitfinex integration supports trading Crypto .

AddCrypto("BTCUSDT", Resolution.Minute, Market.Bitfinex);

self.AddCrypto("BTCUSDT", Resolution.Minute, Market.Bitfinex)

If you call the SetBrokerageModel method with the correct BrokerageName , then you don't need to pass a Market argument to the AddCrypto method because the brokerage model has a default market .

Data Feeds

Our Crypto data feed provides Crypto data during live trading.

Orders

We model the Bitfinex API by supporting several order types, order properties, and order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our Bitfinex integration supports:

Order Type	Crypto
MarketOrder
LimitOrder
LimitIfTouchedOrder
StopMarketOrder
StopLimitOrder
MarketOnOpenOrder
MarketOnCloseOrder

Order Properties

We model custom order properties from the Bitfinex API. The following table describes the members of the BitfinexOrderProperties object that you can set to customize order execution:

Updates

We model the Bitfinex API by supporting order updates .

Fees

To view the Bitfinex trading fees, see the Fees Schedule page on the Bitfinex website. To view how we model their fees, see Fees .

To use the Bitfinex brokerage in a live algorithm, the following table shows the fee settings you need on your Account > Fees page on the Bitfinex website:

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements.

Slippage

Orders through Bitfinex do not experience slippage in backtests. In paper trading and live trading, your orders may experience slippage.

To view how we model Bitfinex slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model Bitfinex order fills, see Fills .

Settlements

Trades settle immediately after the transaction

To view how we model settlement for Bitfinex trades, see Settlement .

Security and Stability

When you deploy live algorithms with Bitfinex, we don't save your brokerage account credentials.

We call the Bitfinex API to place live trades. Sometimes the API may be down. Check the Bitfinex status page to see if the API is currently working.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the Bitfinex brokerage:

Virtual Pairs

All fiat and Crypto currencies are individual assets. When you buy a pair like BTCUSD, you trade USD for BTC. In this case, LEAN removes some USD from your portfolio cashbook and adds some BTC. The virtual pair BTCUSD represents your position in that trade, but the virtual pair doesn't actually exist. It simply represents an open trade. When you deploy a live algorithm, LEAN populates your cashbook with the quantity of each currency, but it can't get your position of each virtual pair.

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project that you want to deploy.

If you are deploying a paper trading algorithm without the QuantConnect Paper Trading brokerage, include the following lines of code in the Initialize method of your algorithm:

self.SetAccountCurrency("TESTUSD") # or "TESTUSDT"
self.SetBrokerageModel(BrokerageName.Bitfinex, AccountType.Cash)
self.SetBenchmark(lambda x: 0) # or the Symbol of the TESTBTCTESTUSD/TESTBTCTESTUSDT securities

SetAccountCurrency("TESTUSD"); // or "TESTUSDT"
SetBrokerageModel(BrokerageName.Bitfinex, AccountType.Cash);
SetBenchmark(x => 0); // or the Symbol of the TESTBTCTESTUSD/TESTBTCTESTUSDT securities

2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Bitfinex Exchange from the drop-down menu.
4. Enter your API key and secret.

To generate your API credentials, see Account Types . Your account details are not saved on QuantConnect.

5. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
6. (Optional) Set up notifications .
7. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

8. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Coinbase

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Coinbase was founded by Brian Armstrong and Fred Ehrsam in 2012 with the goal to "increase economic freedom in the world". Coinbase provides access to trading Crypto for clients in over 100 countries with no minimum deposit. Coinbase also provides a self-hosted Crypto wallet, a Visa debit rewards card, and Bitcoin collateral-backed lines of credit.

To view the implementation of the Coinbase brokerage integration, see the Lean.Brokerages.CoinbasePro repository .

Account Types

Coinbase supports cash accounts. To set the account type in an algorithm, see the Coinbase brokerage model documentation .

Create an Account

Follow the Create a Coinbase account tutorial on the Coinbase website to create an account.

You will need API credentials to deploy live algorithms. After you have an account, create API credentials and store them somewhere safe. As you create credentials, enable View and Trade permissions.

Paper Trading

Coinbase supports paper trading through the Coinbase Sandbox . You need a Coinbase account to paper trade in the Sandbox.

To create API credentials, log in to your Sandbox account and then follow the instructions for creating credentials for Coinbase . As you create credentials, enable View and Trade permissions.

After you create API credentials for your Sandbox account, follow these steps to add capital to your account:

1. In the top navigation bar of the Sandbox, click Portfolios .
2. On the Portfolios page, click Deposit .
3. In the Deposit window, click the asset that you want to deposit into your account.
4. Click Coinbase.com .
5. In the Amount field, enter the quantity of the asset to deposit.
6. Click Deposit .
7. Click Done .

Asset Classes

Our Coinbase integration supports trading Crypto .

AddCrypto("BTCUSD", Resolution.Minute, Market.GDAX);

self.AddCrypto("BTCUSD", Resolution.Minute, Market.GDAX)

If you call the SetBrokerageModel method with the correct BrokerageName , then you don't need to pass a Market argument to the AddCrypto method because the brokerage model has a default market .

Data Feeds

Our Crypto data feed provides Crypto data during live trading.

Orders

We model the Coinbase API by supporting several order types, supporting order properties, and not supporting order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our Coinbase integration supports:

Order Type	Crypto
MarketOrder
LimitOrder
StopMarketOrder
StopLimitOrder

Order Properties

We model custom order properties from the Coinbase API. The following table describes the members of the GDAXOrderProperties object that you can set to customize order execution:

Updates

We model the Coinbase API by not supporting order updates, but you can cancel an existing order and then create a new order with the desired arguments. For more information about this workaround, see the Workaround for Brokerages That Don’t Support Updates .

Fees

To view the Coinbase trading fees, see the What are the fees on Coinbase? page on the Coinbase website. To view how we model their fees, see Fees .

Margin

Coinbase doesn't support margin trading.

Slippage

Orders through Coinbase do not experience slippage in backtests. In paper trading and live trading, your orders may experience slippage.

To view how we model Coinbase slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model Coinbase order fills, see Fills .

Settlements

Trades settle immediately after the transaction

To view how we model settlement for Coinbase trades, see Settlement .

Security and Stability

When you deploy live algorithms with Coinbase, we don't save your brokerage account credentials.

We call the Coinbase API to place live trades. Sometimes the API may be down. Check the Coinbase status page to see if the API is currently working.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the Coinbase brokerage:

Virtual Pairs

All fiat and Crypto currencies are individual assets. When you buy a pair like BTCUSD, you trade USD for BTC. In this case, LEAN removes some USD from your portfolio cashbook and adds some BTC. The virtual pair BTCUSD represents your position in that trade, but the virtual pair doesn't actually exist. It simply represents an open trade. When you deploy a live algorithm, LEAN populates your cashbook with the quantity of each currency, but it can't get your position of each virtual pair.

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Coinbase from the drop-down menu.
4. Enter your Coinbase API key, API secret, and passphrase.

To generate your API credentials, see the Create an Account section in the Account Types documentation. Your account details are not saved on QuantConnect.

5. Click on the Environment field and then click one of the environments.

The following table shows the supported environments:

Environment	Description
Live	Trade with real money
Paper	Trade with paper money

6. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
7. (Optional) Set up notifications .
8. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

9. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Interactive Brokers

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Interactive Brokers (IB) was founded by Thomas Peterffy in 1993 with the goal to "create technology to provide liquidity on better terms. Compete on price, speed, size, diversity of global products and advanced trading tools". IB provides access to trading Equities, ETFs, Options, Futures, Future Options, Forex, Gold, Warrants, Bonds, and Mutual Funds for clients in over 200 countries and territories with no minimum deposit. IB also provides paper trading, a trading platform, and educational services.

To view the implementation of the IB brokerage integration, see the Lean.Brokerages.InteractiveBrokers repository .

Account Types

The IB API does not support the IBKR LITE plan. You need an IBKR PRO plan. Individual and Financial Advisor (FA) accounts are available.

Individual Accounts

IB supports cash and margin accounts. To set the account type in an algorithm, see the IB brokerage model documentation .

FA Accounts

IB supports FA accounts for Trading Firm and Institution organizations. FA accounts enable certified professionals to use a single trading algorithm to manage several client accounts. For more information about FA accounts, see Financial Advisors .

Create an Account

You need to open an IBKR Pro account to deploy algorithms with IB. The IB API does not support IBKR Lite accounts. To create an IB account, see the Open an Account page on the IB website.

You need to activate IBKR Mobile Authentication (IB Key) to deploy live algorithms with your brokerage account. After you open your account, follow the installation and activation instructions on the IB website.

Paper Trading

IB supports paper trading. Follow the Opening a Paper Trading Account page in the IB documentation to set up your paper trading account.

If you want to use IB data feeds and trade with your paper trading account, follow these steps:

1. Log in to the IB Client Portal.
2. In the top-right corner, click the person icon and then click Settings .
3. In the Account Configuration section, click Paper Trading Account .
4. Click Yes .
5. Click Save .

The IB paper trading environment simulates most aspects of a production Trader Workstation account, but you may encounter some differences due to its construction as a simulator with no execution or clearing abilities.

Asset Classes

Our Interactive Brokers integration supports the following asset classes:

• US Equities
• Equity Options
• Forex
• Futures
• Future Options
• Indices
• Index Options

You may not be able to trade all assets with IB. For example, if you live in the EU, you can't trade US ETFs. Check with your local regulators to know which assets you are allowed to trade. You may need to adjust settings in your brokerage account to live trade some assets.

Data Feeds

You might need to purchase an IB data feed subscription for your trading. For more information about live data feeds, see Data Feeds .

Orders

We model the IB API by supporting several order types, order properties, and order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the order types that our IB integration supports: supports. For specific details about each order type, refer to the IB documentation.

The following table describes the available order types for each asset class that IB supports:

Order Type	US Equity	Equity Options	Forex	Futures	Futures Options	Index Options
MarketOrder
LimitOrder
LimitIfTouchedOrder
StopMarketOrder
StopLimitOrder
MarketOnOpenOrder
MarketOnCloseOrder
ComboMarketOrder
ComboLimitOrder
ComboLegLimitOrder
ExerciseOption		Not supported for cash-settled Options

Order Properties

We model custom order properties from the IB API. The following table describes the members of the InteractiveBrokersOrderProperties object that you can set to customize order execution. The table does not include the preceding methods for FA accounts.

Updates

We model the IB API by supporting order updates .

Financial Advisor Group Orders

To place FA group orders, see Financial Advisors .

Fractional Trading

The IB API and FIX/CTCI don't support fractional trading .

Handling Splits

If you're using raw data normalization and you have active orders with a limit, stop, or trigger price in the market for a US Equity when a stock split occurs, the following properties of your orders automatically adjust to reflect the stock split:

• Quantity
• Limit price
• Stop price
• Trigger price

Fill Time

IB has a 400 millisecond fill time for live orders.

Brokerage Liquidations

When IB liquidates part of your position, you receive an order event that contains the Brokerage Liquidation message.

Fees

To view the IB trading fees, see the Commissions page on the IB website. To view how we model their fees, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements. If you have more than $25,000 in your brokerage account, you can use the PatternDayTradingMarginModel to make use of the 4x intraday leverage and 2x overnight leverage available on most brokerages from the PDT rule .

Slippage

Orders through IB do not experience slippage in backtests. In paper trading and live trading, your orders may experience slippage.

To view how we model IB slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model IB order fills, see Fills .

Settlements

If you trade with a margin account, trades settle immediately

To view how we model settlement for IB trades, see Settlement .

Security and Stability

When you deploy live algorithms with IB, we don't save your brokerage account credentials.

We call the IB API to place live trades. Sometimes the API may be down. Check the IB status page to see if the API is currently working.

Connections

By default, IB only supports one connection at a time to your account. If you interfere with your brokerage account while an algorithm is connected to it, the algorithm may stop executing. If you deploy a live running algorithm with your IB account and want to open Trader Workstation (TWS) with the same IB account, create a second user on your IB account and log in to TWS with the new user credentials. To run more than one algorithm with IB, open an IB subaccount for each additional algorithm.

If you can't log in to TWS with your credentials, contact IB. If you can log in to TWS but can't log in to the deployment wizard, contact us and provide the algorithm ID and deployment ID.

SMS 2FA

Our IB integration doesn't support Two-Factor Authentication (2FA) via SMS or the Online Security Code Card. Use the IB Key Security via IBKR Mobile instead.

System Resets

If your IB account has 2FA enabled, you receive a notification on your IB Key device every Sunday to re-authenticate the connection between IB and your live algorithm. When you deploy your algorithm , you can select a time on Sunday to receive the notification. If you don't re-authenticate before the timeout period, your algorithm quits executing. Ensure your IB Key device has sufficient battery for the time you expect to receive the notification. If you don't receive a notification, see I am not receiving IBKR Mobile notifications on the IB website.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the IB brokerage:

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Interactive Brokers from the drop-down menu.
4. Enter your IB user name, ID, and password.

Your account details are not saved on QuantConnect.

5. In the Weekly Restart UTC field, enter the Coordinated Universal Time (UTC) time of when you want to receive notifications on Sundays to re-authenticate your account connection.

For example, 4 PM UTC is equivalent to 11 AM Eastern Standard Time, 12 PM Eastern Daylight Time, 8 AM Pacific Standard Time, and 9 AM Pacific Daylight Time. To convert from UTC to a different time zone, see the UTC Time Zone Converter on the UTC Time website.

If your IB account has 2FA enabled, you receive a notification on your IB Key device every Sunday to re-authenticate the connection between IB and your live algorithm. If you don't re-authenticate before the timeout period, your algorithm quits executing.

6. Click the Data Provider field and then click one of the data feeds from the drop-down menu.

The following table describes the available data feeds:

Data Feed	Description
QuantConnect	Use data collected across all of the exchanges. For more details about this data feed, see Data Feeds .
IB	Use data sourced directly from IB. For more details about this data feed, see the IB data feed guide.
QuantConnect + IB	Use a combination of the QuantConnect and IB data feeds. For more details about this option, see Hybrid QuantConnect Data Feed .

7. If you have subscriptions to IB data feeds and want to use them, click the Data Provider field and then click Interactive Brokers from the drop-down menu.

If you use IB data feeds and trade with a paper trading account, you need to share the data feed with your paper trading account. For instructions on sharing data feeds, see Account Types .

8. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
9. (Optional) Set up notifications .
10. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

11. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Kraken

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Kraken was founded by Jesse Powell in 2011 with the goal to "accelerate the adoption of cryptocurrency so that you and the rest of the world can achieve financial freedom and inclusion". Kraken provides access to trading Crypto through spot and Futures markets for clients with a minimum deposit of around $0-$150 USD for currency and Crypto deposits . Kraken also provides staking services, educational content, and a developer grant program.

To view the implementation of the Kraken brokerage integration, see the Lean.Brokerages.Kraken repository .

Account Types

Kraken supports cash and margin accounts. To set the account type in an algorithm, see the Kraken brokerage model documentation .

Create an Account

Follow the account creation wizard on the Kraken website to create a Kraken account.

You will need API credentials to deploy live algorithms with your brokerage account. After you open your account, create API credentials and store them somewhere safe.

Paper Trading

The Kraken brokerage doesn't support paper trading, but you can follow these steps to simulate it:

1. In the Initialize method of your algorithm, add one of the preceding SetBrokerageModel method calls.
2. Deploy your algorithm with the QuantConnect Paper Trading brokerage .

Asset Classes

Our Kraken integration supports trading Crypto .

AddCrypto("BTCUSDT", Resolution.Minute, Market.Kraken);

self.AddCrypto("BTCUSDT", Resolution.Minute, Market.Kraken)

If you call the SetBrokerageModel method with the correct BrokerageName , then you don't need to pass a Market argument to the AddCrypto method because the brokerage model has a default market .

Data Feeds

Our Crypto data feed provides Crypto data during live trading.

Orders

We model the Kraken API by supporting several order types, supporting order properties, and not supporting order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our Kraken integration supports:

Order Type	Crypto
MarketOrder
LimitOrder
LimitIfTouchedOrder
StopMarketOrder
StopLimitOrder

Order Properties

We model custom order properties from the Kraken API. The following table describes the members of the KrakenOrderProperties object that you can set to customize order execution:

Updates

We model the Kraken API by not supporting order updates, but you can cancel an existing order and then create a new order with the desired arguments. For more information about this workaround, see the Workaround for Brokerages That Don’t Support Updates .

Fees

To view the Kraken trading fees, see the Fee Schedule page on the Kraken website. To view how we model their fees, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements.

Slippage

Orders through Kraken do not experience slippage in backtests. In live trading, your orders may experience slippage.

To view how we model Kraken slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model Kraken order fills, see Fills .

Settlements

Trades settle immediately after the transaction

To view how we model settlement for Kraken trades, see Settlement .

Security and Stability

When you deploy live algorithms with Kraken, we don't save your brokerage account credentials.

We call the Kraken API to place live trades. Sometimes the API may be down. Check the Kraken status page to see if the API is currently working.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the Kraken brokerage:

Virtual Pairs

All fiat and Crypto currencies are individual assets. When you buy a pair like BTCUSD, you trade USD for BTC. In this case, LEAN removes some USD from your portfolio cashbook and adds some BTC. The virtual pair BTCUSD represents your position in that trade, but the virtual pair doesn't actually exist. It simply represents an open trade. When you deploy a live algorithm, LEAN populates your cashbook with the quantity of each currency, but it can't get your position of each virtual pair.

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Kraken Exchange from the drop-down menu.
4. Enter your Kraken API secret and key.

Gather your API credentials from the API Management Settings page on the Kraken website. Your account details are not saved on QuantConnect.

5. Click the Verification Tier field and then click your verification tier from the drop-down menu.

For more information about verification tiers, see Verification levels explained on the Kraken website.

6. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
7. (Optional) Set up notifications .
8. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

9. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Oanda

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Oanda was founded by Dr. Michael Stumm and Dr. Richard Olsen in 1995 with the goal to "transform all aspects of how the world interacts with currencies, whether that be trading or utilizing currency data and information". Oanda provides access to trading Forex and CFDs for clients in over 240 countries and territories with no minimum deposit . Oanda also provides demo accounts, advanced charting tools, and educational content

To view the implementation of the Oanda brokerage integration, see the Lean.Brokerages.OANDA repository .

Account Types

Oanda supports margin accounts. To set the account type in an algorithm, see the Oanda brokerage model documentation .

Create an Account

Follow the How to open an account page on the Oanda website to open an Oanda account.

You will need your account number and access token to deploy live algorithms. To get your account number, open the Account Statement page on the Oanda website. Your account number is formatted as ###-###-######-### . To get your access token, open the Manage API Access on the Oanda website.

Paper Trading

Oanda supports paper trading. Follow these steps to set up an Oanda paper trading account:

1. Create an Oanda demo account .
2. Log in to your demo account .
3. On the Account page, in the My Services section, click Manage API Access .
4. On the Your key to OANDA's API page, click Generate .

Your access token displays. Store it somewhere safe. You need your access token to deploy an algorithm with your paper trading account.


5. In the top navigation bar, click My Account .
6. On the Account page, in the Manage Funds section, click View .
7. On the My Funds page, in the Account Summary section, note your v20 Account Number.

You need your v20 Account Number to deploy an algorithm with your paper trading account.

Asset Classes

Our Oanda integration supports trading Forex and CFDs .

Data Feeds

Our Forex and CFD data feeds provide trading data during live trading.

Orders

We model the Oanda API by supporting several order types, a TimeInForce order instruction, and order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our Oanda integration supports:

Order Type	Forex	CFD
MarketOrder
LimitOrder
StopMarketOrder

Time In Force

We model the GoodTilCanceled TimeInForce from the Oanda API.

Updates

We model the Oanda API by supporting order updates .

Fees

To view the Oanda trading fees, see the Our Charges and Fees page on the Oanda website. To view how we model their fees, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements.

Slippage

Orders through Oanda do not experience slippage in backtests. In paper trading and live trading, your orders may experience slippage.

To view how we model Oanda slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model Oanda order fills, see Fills .

Settlements

Trades settle immediately after the transaction

To view how we model settlement for Oanda trades, see Settlement .

Security and Stability

When you deploy live algorithms with Oanda, we don't save your brokerage account credentials.

We call the Oanda API to place live trades. Sometimes the API may be down. Check the Oanda status page to see if the API is currently working.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the Oanda brokerage:

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Oanda from the drop-down menu.
4. Enter your Oanda account Id and access token.

To get your account ID and access token, see the Create an Account section in the Account Types documentation. Your account details are not saved on QuantConnect.


5. Click the Environment field and then click one of the environments.

The following table shows the supported environments:

Environment	Description
Real	Trade real money with fxTrade
Demo	Trade paper money with fxTrade Practice

6. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
7. (Optional) Set up notifications .
8. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

9. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Prime Brokerages

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

On the QuantConnect Local Platform, LEAN can connect to the Bloomberg™ Desktop API (DAPI) through our Terminal Link plug-in. This product is in no way affiliated with or endorsed by Bloomberg™; it is simply an add-on. Add Terminal link to your organization to access the 1,300+ prime brokerages in the Bloomberg Execution Management System network.

For more infomation about Terminal Link, refer to the CLI documentation .

Live Trading > Brokerages > QuantConnect Paper Trading

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

QuantConnect Paper Trading lets you run live, real-time data feeds into your algorithm but execute trades using fictional capital. Instead of your orders being routed to an exchange when you're paper trading, your order fills are simulated. Use paper trading to test your algorithm without risking real money and to ensure your backtest wasn't overfit before deploying with real money. You can use the paper trading brokerage without needing to sign up for a real brokerage account. If you don't set a brokerage model in your algorithm with the SetBrokerageModel method, the paper trading brokerage uses the DefaultBrokerageModel to simulate trades.

To view the implementation of the QuantConnect Paper Trading brokerage, see PaperBrokerage.cs in the LEAN GitHub repository. To view the implementation of the backtesting brokerage, see BacktestingBrokerage.cs in the LEAN GitHub repository.

Account Types

The QuantConnect Paper Trading brokerage supports cash and margin accounts. To set the account type in an algorithm, see the paper trading brokerage model documentation .

If you pass a different BrokerageName to the SetBrokerageModel method, the new brokerage model defines the account types that are available.

Asset Classes

The QuantConnect Paper Trading brokerage supports the following asset classes:

• US Equities
• Crypto
• Forex
• CFD
• Futures
• Future Options

If you set the brokerage model to a model other than the DefaultBrokerageModel , the new brokerage model defines the asset classes you can trade.

Data Feeds

We can only provide paper trading on the assets for which we have a live data feed .

Orders

The following sections describe how the DefaultBrokerageModel handles orders. If you set the brokerage model to a different model, the new brokerage model defines how orders are handled.

Order Types

The following table describes the available order types for each asset class that the DefaultBrokerageModel supports:

Order Type	US Equity	Crypto	Crypto Futures	Forex	CFD	Futures	Futures Options
MarketOrder
LimitOrder
LimitIfTouchedOrder
StopMarketOrder
StopLimitOrder
MarketOnOpenOrder
MarketOnCloseOrder
ComboMarketOrder
ComboLimitOrder
ComboLegLimitOrder
ExerciseOption

Time In Force

The DefaultBrokerageModel supports the following TimeInForce instructions:

• Day
• GoodTilCanceled
• GoodTilDate

Updates

The DefaultBrokerageModel supports order updates .

Handling Splits

If you're using raw data normalization and you have active orders with a limit, stop, or trigger price in the market for a US Equity when a stock split occurs, the following properties of your orders automatically adjust to reflect the stock split:

• Quantity
• Limit price
• Stop price
• Trigger price

Fees

The following table shows the fees that the DefaultBrokerageModel charges for each of the supported asset classes:

There is no fee to exercise Option contracts.

If you set the brokerage model to a model other than the DefaultBrokerageModel , the new brokerage model defines the order fees.

To see the fee models that the DefaultBrokerageModel uses, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements. If you set the brokerage model to a different model, the new brokerage model defines how margin is modeled. If you have more than $25,000 in your brokerage account, you can use the PatternDayTradingMarginModel to make use of the 4x intraday leverage and 2x overnight leverage available on most brokerages from the PDT rule .

Slippage

Orders through the DefaultBrokerageModel do not experience slippage in backtests or paper trading. For more information about the slippage model the DefaultBrokerageModel uses, see Slippage .

Fills

The DefaultBrokerageModel fills market orders immediately and completely. When available, bid and ask spread will be used for the fill prices.

To view how we model realistic order fills, see Fills .

Settlements

If you trade with a margin account, trades settle immediately

To view how we model settlement for paper trades, see Settlement .

Brokerage Models

The QuantConnect Paper Trading brokerage uses the DefaultBrokerageModel by default, but you can use any of the brokerage models .

Deposits and Withdraws

The QuantConnect Paper Trading brokerage supports deposits and withdraws.

Porfolio.CashBook.Add(AccountCurrency, 100);
Porfolio.CashBook.Add("ETH", -1);

self.Porfolio.CashBook.Add(self.AccountCurrency, 100)
self.Porfolio.CashBook.Add("ETH", -1)

Demo Algorithm

The following algorithm demonstrates the functionality of the DefaultBrokerageModel :

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live paper trading algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Paper Trading from the drop-down menu.
4. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
5. (Optional) Follow these steps to start the algorithm with existing cash holdings ( see video ):
1. In the Algorithm Cash State section, click Show .
2. Click Add Currency .
3. Enter the currency ticker (for example, USD or BTC) and a quantity.
6. (Optional) Follow these steps to start the algorithm with existing position holdings ( see video ):
1. In the Algorithm Holdings State section, click Show .
2. Click Add Holding .
3. Enter the symbol ID, symbol, quantity, and average price.
7. (Optional) Set up notifications .
8. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

9. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays.

Live Trading > Brokerages > Samco

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Samco was founded by Jimeet Modi in2015 with a mission of providing retail investors access to sophisticated financial technology that can assist retail investors in creating wealth at a low cost. Samco provides access to India Equities for clients in India with no minimum balance. Samco also provides stock ratings, mutual funds, and a mini-portfolio investment platform.

To view the implementation of the Samco brokerage integration, see the Lean.Brokerages.Samco repository .

Account Types

Samco supports cash and margin accounts. To set the account type in an algorithm, see the Samco brokerage model documentation .

Samco only supports trading in Indian Rupees, so set the account currency of your algorithm to INR.

Create an Account

Follow the account creation wizard on the Samco website to create a Samco account.

Paper Trading

Samco doesn't support paper trading.

Asset Classes

Our Samco integration supports trading the following asset classes:

• Indian Equities
• India Equity Options
• India Futures

Data Feeds

The Samco data feed provides India Equities data during live trading.

Orders

We model the Samco API by supporting several order types, supporting order properties, and order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our Samco integration supports:

Order Type	India Equity
MarketOrder
LimitOrder
StopMarketOrder

Order Properties

We model custom order properties from the Samco API. The following table describes the members of the IndiaOrderProperties object that you can set to customize order execution:

Updates

We model the Samco API by supporting order updates .

Handling Splits

If you're using raw data normalization and you have active orders with a limit, stop, or trigger price in the market for a US Equity when a stock split occurs, the following properties of your orders automatically adjust to reflect the stock split:

• Quantity
• Limit price
• Stop price
• Trigger price

Fees

To view the Samco trading fees, see the Regulatory and Exchanges Charges page on the Samco website. To view how we model their fees, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements.

Slippage

Orders through Samco do not experience slippage in backtests. In live trading, your orders may experience slippage.

To view how we model Samco slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model Samco order fills, see Fills .

Settlements

If you trade with a margin account, trades settle immediately

To view how we model settlement for Samco trades, see Settlement .

Security and Stability

When you deploy live algorithms with Samco, we don't save your brokerage account credentials.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the Samco brokerage:

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live trading algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Samco from the drop-down menu.
4. Enter your client ID, password, and date of birth.

Your account details aren't saved on QuantConnect.

5. Click the Product Type field and then click one of the following options from the drop-down menu:

Product Type	Description
MIS	Intraday products
CNC	Delivery products
NRML	Carry forward products

6. Click the Trading Segment field and then click one of the following options from the drop-down menu:

Trading Segment	Description
EQUITY	For trading Equities on the National Stock Exchange of India (NSE) or the Bombay Stock Exchange (BSE)
COMMODITY	For trading commodities on the Multi Commodity Exchange of India (MCX)

7. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
8. (Optional) Set up notifications .
9. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

10. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays.

Live Trading > Brokerages > TD Ameritrade

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

TD Ameritrade was founded by Joe Ricketts in 1971 with the goal to make "smart investors smarter through award-winning trading technology, education, and service". TD Ameritrade provides access to trading Equities, Options, Futures, Forex, Crypto, and other assets for clients with no minimum deposit . TD Ameritrade also provides a collateral lending program, education services, and a desktop trading platform.

To view the implementation of the TD Ameritrade brokerage integration, see the Lean.Brokerages.TDAmeritrade repository .

Account Types

TD Ameritrade supports cash and margin accounts. To set the account type in an algorithm, see the TD Ameritrade brokerage model documentation .

Create an Account

Follow the account creation wizard on the TD Ameritrade website to create a TD Ameritrade account.

You will need API credentials to deploy live algorithms with your brokerage account. You cannot create new API credentials due to the Trader API Schwab Integration .

If you have the API key, follow these steps to retrieve the access token:

• Use the API key to create the link to generate the access token request:
  https://auth.tdameritrade.com/oauth?client_id= your-api-key %40AMER.OAUTHAP&response_type=code&redirect_uri=http%3A%2F%2Flocalhost
• Paste the link into your browser and click Go or hit Enter. It will take you to a "Secure Log-In" page. You need to log in with a TD Ameritrade client account.
• Once you have logged in click the "Allow" button. It will take you to a "This site can't be reached error" page. You will find the access token in the page URL:
  http://localhost/?code= this-blob-is-your-access-code

The redirect URI must use http , as https is not supported.

See the following resources for additional information:

• Authentication FAQ on the TD Ameritrade website
• TD Ameritrade API Access - 2019 Guide on r/algotrading

In this tutorial, the access token is decoded. QuantConnect's implementation required the encoded access token (see this-blob-is-your-access-code above).

Paper Trading

The TD Ameritrade API doesn't support paper trading, but you can follow these steps to simulate it:

1. In the Initialize method of your algorithm, add one of the preceding SetBrokerageModel method calls.
2. Deploy your algorithm with the QuantConnect Paper Trading brokerage .

Asset Classes

Our TD Ameritrade integration supports trading US Equities .

You may not be able to trade all assets with TD Ameritrade. For example, if you live in the EU, you can't trade US ETFs. Check with your local regulators to know which assets you are allowed to trade. You may need to adjust settings in your brokerage account to live trade some assets.

Data Feeds

Our US Equities data feed provides US Equity data during live trading.

Orders

We model the TD Ameritrade API by supporting several order types, the TimeInForce order property, and order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our TD Ameritrade integration supports:

Order Type	Equity
MarketOrder
LimitOrder
StopMarketOrder
StopLimitOrder

Time In Force

We model the TD Ameritrade API by supporting the following TimeInForce instructions:

• Day
• GoodTilCanceled
• GoodTilDate

Updates

We model the TD Ameritrade API by supporting order updates .

Handling Splits

If you're using raw data normalization and you have active orders with a limit, stop, or trigger price in the market for a US Equity when a stock split occurs, the following properties of your orders automatically adjust to reflect the stock split:

• Quantity
• Limit price
• Stop price
• Trigger price

Fees

To view the TD Ameritrade trading fees, see the Pricing page on the TD Ameritrade website. To view how we model their fees, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements. If you have more than $25,000 in your brokerage account, you can use the PatternDayTradingMarginModel to make use of the 4x intraday leverage and 2x overnight leverage available on most brokerages from the PDT rule .

Slippage

Orders through TD Ameritrade do not experience slippage in backtests. In paper trading and live trading, your orders may experience slippage.

To view how we model TD Ameritrade slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model TD Ameritrade order fills, see Fills .

Settlements

If you trade with a margin account, trades settle immediately

To view how we model settlement for TD Ameritrade trades, see Settlement .

Security and Stability

When you deploy live algorithms with TD Ameritrade, we don't save your brokerage account credentials.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the TD Ameritrade brokerage:

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click TD Ameritrade from the drop-down menu.
4. Enter your TD Ameritrade account ID, key, and token.

To get your account credentials, see Account Types . Your account details are not saved on QuantConnect.

5. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
6. (Optional) Set up notifications .
7. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

8. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Tradier

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Tradier was founded by Dan Raju, Peter Laptewicz, Jason Barry, Jeyashree Chidambaram, and Steve Agalloco in 2012 with the goal to "deliver a choice of low-cost, high-value brokerage services to traders". Tradier provides access to trading Equities and Options for clients in over 250 countries and territories with no minimum deposit for cash accounts . Tradier also delivers custody, clearing, execution, and billing on behalf of registered advisors.

To view the implementation of the Tradier brokerage integration, see the Lean.Brokerages.Tradier repository .

Account Types

Tradier supports cash and margin accounts. To set the account type in an algorithm, see the Tradier brokerage model documentation .

Create an Account

Follow the account creation wizard on the Tradier website to create a Tradier account.

You will need your account ID and access token to deploy live algorithms. After you have an account, get your account ID and token from the Settings > API Access page on the Tradier website. Your account ID is the alpha-numeric code in a drop-down field on the page.

Paper Trading

Tradier supports paper trading, but with the following caveats:

• Account activity is unavailable since this information is populated from Tradier's clearing firm.
• Streaming Tradier market data is unavailable due to exchange restrictions related to delayed data.

To get your paper trading account number and access token, open the API Access page on the Tradier website and then scroll down to the Sandbox Account Access (Paper Trading) section.

If you trade Equities, you can use the QuantConnect data feed to get real-time data. If you trade Options, you must use delayed data from the Tradier data feed . If you trade Equities and Options, use the Tradier data feed. We don't currently have a hybrid QuantConnect-Tradier data feed. If you trade with the demo environment, Tradier doesn't offer streaming market data due to exchange restrictions related to delayed data, so you must use our data feed.

Asset Classes

Our Tradier integration supports trading US Equities and Equity Options .

You may not be able to trade all assets with Tradier. For example, if you live in the EU, you can't trade US ETFs. Check with your local regulators to know which assets you are allowed to trade. You may need to adjust settings in your brokerage account to live trade some assets.

Data Feeds

You might need to purchase a Tradier data feed subscription for your trading. For more information about live data feeds, see Data Feeds .

Orders

We model the Tradier API by supporting several order types and the TimeInForce order property. Tradier partially supports order updates, but does not support trading during extended market hours. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our Tradier integration supports:

Order Type	Equity	Equity Options
MarketOrder
LimitOrder
StopMarketOrder
StopLimitOrder

Time In Force

We model the Tradier API by supporting the following TimeInForce instructions:

• Day
• GoodTilCanceled (not available for short selling)
• GoodTilDate

Updates

We model the Tradier API by supporting most order updates . To update the quantity of an order, cancel the order and then submit a new order with the desired quantity. For more information about this workaround, see the Workaround for Brokerages That Don’t Support Updates .

Extended Market Hours

Tradier doesn't support extended market hours trading. If you place an order outside of regular trading hours, the order will be processed at market open.

Automatic Cancellations

If you have open orders for a security when it performs a reverse split, Tradier automatically cancels your orders.

Errors

To view the order-related error codes from Tradier, see Error Responses in their documentation.

Fees

To view the Tradier trading fees, see the Pricing page on the Tradier website. To view how we model their fees, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements. If you have more than $25,000 in your brokerage account, you can use the PatternDayTradingMarginModel to make use of the 4x intraday leverage and 2x overnight leverage available on most brokerages from the PDT rule .

Slippage

Orders through Tradier do not experience slippage in backtests. In live trading, your orders may experience slippage.

To view how we model Tradier slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model Tradier order fills, see Fills .

Settlements

If you trade with a margin account, trades settle immediately

To view how we model settlement for Tradier trades, see Settlement .

Security and Stability

When you deploy live algorithms with Tradier, we don't save your brokerage account credentials.

We call the Tradier API to place live trades. Sometimes the API may be down. Check the Tradier status page to see if the API is currently working.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the Tradier brokerage:

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Tradier from the drop-down menu.
4. Enter your Tradier account Id and token.

To get your account ID and token, see the Create an Account section in the Account Types documentation. Your account details are not saved on QuantConnect.


5. Click the Environment field and then click one of the environments from the drop-down menu.

The following table shows the supported environments:

Environment	Description
Real	Trade with real money
Demo	Trade with paper money

6. Click the Data Provider field and then click one of the data feeds from the drop-down menu.

The following table describes the available data feeds:

Data Feed	Description
QuantConnect	Use data collected across all of the exchanges. For more details about this data feed, see Data Feeds .
Tradier	Use data sourced directly from Tradier. This data feed isn't available for the demo environment. For more details about this data feed, see the Tradier data feed guide.

7. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
8. (Optional) Set up notifications .
9. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

10. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Trading Technologies

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Trading Technologies (TT) was founded by Gary Kemp in 1994 with the goal to create professional trading software, infrastructure, and data solutions for a wide variety of users. TT provides access to trading Futures, Options, and Crypto. TT also provides a charting platform, infrastructure services, and risk management tools. TT is not actually a brokerage. The firm is a brokerage router with access to more than 30 execution destinations.

To view the implementation of the TT integration, see the Lean.Brokerages.TradingTechnologies repository .

Modeling

The TradingTechnologiesBrokerageModel does not have specific modeling for fees and slippage because TT is an order router and can execute on many exchanges and brokerages. To set the brokerage model and account type in an algorithm, see the TT brokerage model documentation . In live trading, TT reports the total fees of your orders after each order fill. Pass a different BrokerageName to SetBrokerageModel to backtest your algorithm with fee and slippage modeling. The brokerage model you set should support the asset classes and orders in your algorithm.

Create an Account

Follow the account creation wizard on the TT website to create a TT account.

Paper Trading

Our TT integration does not support paper trading through the TT Simulation environment, but you can follow these steps to simulate it:

1. In the Initialize method of your algorithm, add one of the preceding SetBrokerageModel method calls.
2. Deploy your algorithm with the QuantConnect Paper Trading brokerage .

Asset Classes

Our TT integration supports trading Futures .

Data Feeds

Our Futures data feed provides Futures data during live trading.

Orders

We model the TT API by supporting several order types, the TimeInForce order property, and order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our TT integration supports:

Order Type	Futures
MarketOrder
LimitOrder
StopMarketOrder
StopLimitOrder

TT enforces the following order rules:

• If you are buying (selling) with a StopMarketOrder or a StopLimitOrder , the stop price of the order must be greater (less) than the current security price.
• If you are buying (selling) with a StopLimitOrder , the limit price of the order must be greater (less) than the stop price.

Time In Force

We model the TT API by supporting the Day and GoodTilCanceled TimeInForce order properties.

Updates

We model the TT API by supporting order updates .

Fees

To view the TT trading fees, see the Pricing page on the TT website. To view how we model their fees, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements.

Slippage

Orders through TT do not experience slippage in backtests. In live trading, your orders may experience slippage.

To view how we model TT slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model TT order fills, see Fills .

Security and Stability

When you deploy live algorithms with TT, we don't save your brokerage account credentials.

We call the TT API to place live trades. Sometimes the API may be down. Check the TT status page to see if the API is currently working.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the TT brokerage:

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Trading Technologies from the drop-down menu.
4. Enter your TT user name, account name, routing sender, session password, app key, and app secret.

Our TT integration routes orders via the TT FIX 4.4 Connection. Contact your TT representative to set the exchange where you would like your orders sent. Your account details are not saved on QuantConnect.


Our integration fetches your positions using the REST endpoint, so the app key and app secret are your REST App credentials.

5. Click the Environment field and then click one of the environments from the drop-down menu.

The following table shows the supported environments:

Environment	Description
Live	Trade in the production environment
UAT	Trade in the User Acceptance Testing environment

6. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
7. If your brokerage account has existing cash holdings, follow these steps ( see video ):
1. In the Algorithm Cash State section, click Show .
2. Click Add Currency .
3. Enter the currency ticker (for example, USD or CAD) and a quantity.
8. (Optional) Set up notifications .
9. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

10. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Wolverine

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Wolverine Execution Services is a diversified financial institution specializing in proprietary trading, asset management, order execution services, and technology solutions. They are recognized as a market leader in derivatives valuation, trading, and value-added order execution across global Equity, Options, and Futures markets. Their focus on innovation, achievement, and integrity serves the interests of their clients and colleagues. Wolverine Execution Services is headquartered in Chicago, with branch offices in New York, San Francisco, and London. They serve funds that have at least $5M assets under management.

To view the implementation of the Wolverine Execution Services brokerage integration, see the Lean.Brokerages.Wolverine repository .

Account Types

Wolverine Execution Services supports cash and margin accounts. To set the account type in an algorithm, see the Wolverine brokerage model documentation .

Create an Account

To create a Wolverine Execution Services account, contact their staff through the TradeWex website.

Paper Trading

Wolverine Execution Services doesn't support paper trading, but you can follow these steps to simulate it:

1. In the Initialize method of your algorithm, add one of the preceding SetBrokerageModel method calls.
2. Deploy your algorithm with the QuantConnect Paper Trading brokerage .

Asset Classes

Our Wolverine Execution Services integration supports trading US Equities .

You may not be able to trade all assets with Wolverine. For example, if you live in the EU, you can't trade US ETFs. Check with your local regulators to know which assets you are allowed to trade. You may need to adjust settings in your brokerage account to live trade some assets.

Data Feeds

Our US Equities data feed provides US Equities data during live trading.

Orders

We model the Wolverine Execution Services API by supporting order types, but not order updates or extended market hours trading. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

Our Wolverine Execution Services integration supports market orders .

Updates

We model the Wolverine Execution Services API by not supporting order updates.

Extended Market Hours

Wolverine Execution Services doesn't support extended market hours trading. If you place an order outside of regular trading hours, the order is invalid.

Fees

Wolverine Execution Services charge $0.005 per share you trade. To view how we model their fees, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements. If you have more than $25,000 in your brokerage account, you can use the PatternDayTradingMarginModel to make use of the 4x intraday leverage and 2x overnight leverage available on most brokerages from the PDT rule .

Slippage

Orders through Wolverine Execution Services do not experience slippage in backtests. In live trading, your orders may experience slippage.

To view how we model Wolverine slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model Wolverine Execution Services order fills, see Fills .

Settlements

If you trade with a margin account, trades settle immediately

To view how we model settlement for Wolverine trades, see Settlement .

Security and Stability

When you deploy live algorithms with Wolverine Execution Services, we don't save your brokerage account credentials.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the Wolverine Execution Services brokerage:

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Wolverine Execution Services from the drop-down menu.
4. Enter your Wolverine Execution Services credentials.

Your account details are not saved on QuantConnect.

5. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
6. If your brokerage account has existing cash holdings, follow these steps ( see video ):
1. In the Algorithm Cash State section, click Show .
2. Click Add Currency .
3. Enter the currency ticker (for example, USD or CAD) and a quantity.
7. If your brokerage account has existing position holdings, follow these steps ( see video ):
1. In the Algorithm Holdings State section, click Show .
2. Click Add Holding .
3. Enter the symbol ID, symbol, quantity, and average price.
8. (Optional) Set up notifications .
9. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

10. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays. If you know your brokerage positions before you deployed, you can verify they have been loaded properly by checking your equity value in the runtime statistics, your cashbook holdings, and your position holdings.

Live Trading > Brokerages > Zerodha

Introduction

QuantConnect enables you to run your algorithms in live mode with real-time market data. We have successfully hosted more than 200,000 live algorithms and have had more than $22B in volume traded on our servers since 2015. Brokerages supply a connection to the exchanges so that you can automate orders using LEAN. You can use multiple data feeds in live trading algorithms.

Zerodha was founded by Nithin Kamath in 2010 with the goal to break all barriers that traders and investors face in India in terms of cost, support, and technology. Zerodha provides access to India Equities for clients in India with no minimum balance required. Zerodha also provides a mutual fund investment platform and an interactive portfolio dashboard.

To view the implementation of the Zerodha brokerage integration, see the Lean.Brokerages.Zerodha repository .

Account Types

Zerodha supports cash and margin accounts. To set the account type in an algorithm, see the Zerodha brokerage model documentation .

Zerodha only supports trading Indian Rupees, so set the account currency of your algorithm to INR.

Create an Account

To create a Zerodha account, follow the account creation wizard on the Zerodha website.

You will need API credentials to deploy live algorithms with your brokerage account. After you open your Zerodha account, follow these steps to get your API credentials:

1. Create a Kite Connect developer account .
2. On the My apps page, click Create new app .
3. On the Create a new app page, fill in the form.

For the Redirect URL field, if you don't have a redirect URL, use https://zerodha.com.

4. Click Create .
5. Copy and save your API key and API secret.
6. In a terminal, run the following Python script:

   from kiteconnect import KiteConnect
   import webbrowser
   
   api_key = input ("Enter your API key: ")
   kite = KiteConnect(api_key=api_key)
   ​webbrowser.open(kite.login_url())
   request_token = input ("Enter your request_token: ")
   api_secret = input ("Enter your API secret: ")
   data = kite.generate_session(request_token, api_secret=api_secret)
   kite.set_access_token(data["access_token"])
   print(f"Your access_token is {data['access_token']}")

   Input the data that the script requests. When the script opens your redirect URL page, log in and then copy the request token that's in the URL parameters.

   When the script prints your access token. Copy and save it somewhere safe.

Paper Trading

Zerodha doesn't support paper trading.

Asset Classes

Our Zerodha integration supports trading Indian Equities .

Data Feeds

The Zerodha data feed provides India Equities data during live trading.

Orders

We model the Zerodha API by supporting several order types, order properties, and order updates. When you deploy live algorithms, you can place manual orders through the IDE.

Order Types

The following table describes the available order types for each asset class that our Zerodha integration supports:

Order Type	India Equity
MarketOrder
LimitOrder
StopMarketOrder
StopLimitOrder

Order Properties

We model custom order properties from the Zerodha API. The following table describes the members of the IndiaOrderProperties object that you can set to customize order execution:

Updates

We model the Samco Zerodha by supporting order updates .

Handling Splits

If you're using raw data normalization and you have active orders with a limit, stop, or trigger price in the market for a US Equity when a stock split occurs, the following properties of your orders automatically adjust to reflect the stock split:

• Quantity
• Limit price
• Stop price
• Trigger price

Fees

To view the Zerodha trading fees, see the Charges page on the Zerodha website. To view how we model their fees, see Fees .

Margin

We model buying power and margin calls to ensure your algorithm stays within the margin requirements. The amount of margin available depends on the Equity and product type. To check the amount of margin available for each asset, see the Margin Calculator on the Zerodha website.

Slippage

Orders through Zerodha do not experience slippage in backtests. In live trading, your orders may experience slippage.

To view how we model Zerodha slippage, see Slippage .

Fills

We fill market orders immediately and completely in backtests. In live trading, if the quantity of your market orders exceeds the quantity available at the top of the order book, your orders are filled according to what is available in the order book.

To view how we model Zerodha order fills, see Fills .

Settlements

If you trade with a margin account, trades settle immediately

To view how we model settlement for Zerodha trades, see Settlement .

Security and Stability

When you deploy live algorithms with Zerodha, we don't save your brokerage account credentials.

Deposits and Withdraws

You can deposit and withdraw cash from your brokerage account while you run an algorithm that's connected to the account. We sync the algorithm's cash holdings with the cash holdings in your brokerage account every day at 7:45 AM Eastern Time (ET).

Demo Algorithm

The following algorithm demonstrates the functionality of the Zerodha brokerage:

Deploy Live Algorithms

You must have an available live trading node for each live trading algorithm you deploy.

Follow these steps to deploy a live trading algorithm:

1. Open the project that you want to deploy.
2. Click the Deploy Live icon.
3. On the Deploy Live page, click the Brokerage field and then click Zerodha from the drop-down menu.
4. Enter your Kite Connect access token and key.

To get your access token and key, see Account Types . Your account details aren't saved on QuantConnect.

5. Click the Product Type field and then click one of the following options from the drop-down menu:

Product Type	Description
MIS	Intraday products
CNC	Delivery products
NRML	Carry forward products

6. Click the Trading Segment field and then click one of the following options from the drop-down menu:

Trading Segment	Description
EQUITY	For trading Equities on the National Stock Exchange of India (NSE) or the Bombay Stock Exchange (BSE)
COMMODITY	For trading commodities on the Multi Commodity Exchange of India (MCX)

7. Click the History Subscription field and then click Yes or No from the drop-down menu.

Use this field to declare whether you have a history API subscription on your Kite Connect account.

8. Click the Node field and then click the live trading node that you want to use from the drop-down menu.
9. (Optional) Set up notifications .
10. Configure the Automatically restart algorithm setting.

By enabling automatic restarts, the algorithm will use best efforts to restart the algorithm if it fails due to a runtime error. This can help improve the algorithm's resilience to temporary outages such as a brokerage API disconnection.

11. Click Deploy .

The deployment process can take up to 5 minutes. When the algorithm deploys, the live results page displays.

Live Trading > Brokerages > FIX Connections

Introduction

The Financial Information eXchange (FIX) is the standard electronic communications protocol for front-office messaging. The FIX community includes about 300 firms, including major investment banks.

Supported Connections

The following FIX connections are available on QuantConnect:

Live Trading > Brokerages > Unsupported Brokerages

Introduction

New brokerages can be added if the brokerage has an API that is popular, stable, and officially supported by the brokerage. To add a new brokerage to the platform, contact us .

Live Trading > Data Feeds

Live Trading > Data Feeds > US Equities

Introduction

The US Equities data feed is a stream of security trades and quotes delivered to your trading algorithm during live execution. Live data feeds enable you to make real-time trades and update the value of the securities in your portfolio.

The US Equity Security Master data feed provides a live stream of corporate actions. The US Fundamentals data feed provides daily updates on company fundamentals. The US Equities Short Availability data feed provides the number of shares that are available for short sellers to borrow.

Sourcing

The US Equities data feed consolidates market data across all of the exchanges. Over-the-Counter (OTC) trades are excluded. The data feed is powered by the Securities Information Processor (SIP), so it has 100% market coverage. In contrast, free platforms that display data feeds like the Better Alternative Trading System (BATS) only have about 6-7% market coverage .

We provide live splits, dividends, and corporate actions for US companies. We deliver them to your algorithm before the trading day starts.

Universe Selection

The US Equities data feed enables you to create a dynamic universe of securities.

Coarse-Fine Universe

The live data for coarse and fine universe selection arrives at 7 AM Eastern Time (ET), so coarse and fine universe selection runs for live algorithms between 7 and 8 AM ET. This timing allows you to place trades before the market opens. Don't schedule anything for midnight because the universe selection data isn't ready yet.

AddUniverse(SelectCoarse, SelectFine);

self.AddUniverse(self.SelectCoarse, self.SelectFine)

ETF Constituent Universe

The US Equities data feed enables you to create a universe of securities to match the constituents of an ETF. For more information about ETF universes, see ETF Constituents Selection .

var spy = AddEquity("SPY").Symbol;
AddUniverse(Universe.ETF(spy, UniverseSettings, ETFConstituentsFilter));

spy = self.AddEquity("SPY").Symbol
self.AddUniverse(self.Universe.ETF(spy, self.UniverseSettings, self.ETFConstituentsFilter))

Bar Building

We aggregate ticks to build bars.

Discrepancies

In live trading, bars are built using the exchange timestamps with microsecond accuracy. This microsecond-by-microsecond processing of the ticks can mean that the individual bars between live trading and backtesting can have slightly different ticks. As a result, it's possible for a tick to be counted in different bars between backtesting and live trading, which can lead to bars having slightly different open, high, low, close, and volume values.

Opening and Closing Auctions

The opening and closing price of the day is set by very specific opening and closing auction ticks. When a stock like Apple is listed, it’s listed on Nasdaq. The open auction tick on Nasdaq is the price that’s used as the official open of the day. NYSE, BATS, and other exchanges also have opening auctions, but the only official opening price for Apple is the opening auction on the exchange where it was listed.

We set the opening and closing prices of the first and last bars of the day to the official auction prices. This process is used for second, minute, hour, and daily bars for the 9:30 AM and 4:30 PM Eastern Time (ET) prices. In contrast, other platforms might not be using the correct opening and closing prices.

The official auction prices are usually emitted 2-30 seconds after the market open and close. We do our best to use the official opening and closing prices in the bars we build, but the delay can be so large that there isn't enough time to update the opening and closing price of the bar before it's injected into your algorithms. For example, if you subscribe to second resolution data, we wait until the end of the second for the opening price but most second resolution data won’t get the official opening price. If you subscribe to minute resolution data, we wait until the end of the minute for the opening auction price. Most of the time, you’ll get the actual opening auction price with minute resolution data, but there are always exceptions. Nasdaq and NYSE can have delays in publishing the opening auction price, but we don’t have control over those issues and we have to emit the data on time so that you get the bar you are expecting.

Excluded Ticks

The bar-building process can exclude ticks. If a tick is excluded, its volume is aggregated in the bar but its price is not aggregated in the bar. Ticks are excluded if any of the following statements are true:

• The tick is suspicious.
• The tick is from the FINRA exchange and meets our price and volume thresholds.
• The trade has none of the following included TradeConditionFlags and at least one of the following excluded TradeConditionFlags :

TradeConditionFlags	Status	Description
Regular	Included	A trade made without stated conditions is deemed the regular way for settlement on the third business day following the transaction date.
FormT	Included	Trading in extended hours enables investors to react quickly to events that typically occur outside regular market hours, such as earnings reports. However, liquidity may be constrained during such Form T trading, resulting in wide bid-ask spreads.
Cash	Included	A transaction that requires delivery of securities and payment on the same day the trade takes place.
ExtendedHours	Included	Identifies a trade that was executed outside of regular primary market hours and is reported as an extended hours trade.
NextDay	Included	A transaction that requires the delivery of securities on the first business day following the trade date.
OfficialClose	Included	Indicates the "official" closing value determined by a Market Center. This transaction report will contain the market center generated closing price.
OfficialOpen	Included	Indicates the 'Official' open value as determined by a Market Center. This transaction report will contain the market center generated opening price.
ClosingPrints	Included	The transaction that constituted the trade-through was a single priced closing transaction by the Market Center.
OpeningPrints	Included	The trade that constituted the trade-through was a single priced opening transaction by the Market Center.
IntermarketSweep	Excluded	The transaction that constituted the trade-through was the execution of an order identified as an Intermarket Sweep Order.
TradeThroughExempt	Excluded	Denotes whether or not a trade is exempt (Rule 611).
OddLot	Excluded	Denotes the trade is an odd lot less than a 100 shares.

• The quote has a size of less than 100 shares.
• The quote has one of the following QuoteConditionFlags :

QuoteConditionFlags	Description
Closing	Indicates that this quote was the last quote for a security for that Participant.
NewsDissemination	Denotes a regulatory trading halt when relevant news influencing the security is being disseminated. Trading is suspended until the primary market determines that an adequate publication or disclosure of information has occurred.
NewsPending	Denotes a regulatory Trading Halt due to an expected news announcement, which may influence the security. An Opening Delay or Trading Halt may be continued once the news has been disseminated.
TradingRangeIndication	Denotes the probable trading range (Bid and Offer prices, no sizes) of a security that is not Opening Delayed or Trading Halted. The Trading Range Indication is used prior to or after the opening of a security.
OrderImbalance	Denotes a non-regulatory halt condition where there is a significant imbalance of buy or sell orders.
Resume	Indicates that trading for a Participant is no longer suspended in a security that had been Opening Delayed or Trading Halted.

• The quote has none of the following QuoteConditionFlags :

QuoteConditionFlags	Description
Regular	This condition is used for the majority of quotes to indicate a normal trading environment.
Slow	This condition is used to indicate that the quote is a Slow Quote on both the bid and offer sides due to a Set Slow List that includes high price securities.
Gap	While in this mode, auto-execution is not eligible, the quote is then considered manual and non-firm in the bid and offer, and either or both sides can be traded through as per Regulation NMS.
OpeningQuote	This condition can be disseminated to indicate that this quote was the opening quote for a security for that Participant.
FastTrading	For extremely active periods of short duration. While in this mode, the UTP Participant will enter quotations on a best efforts basis.
Resume	Indicate that trading for a Participant is no longer suspended in a security which had been Opening Delayed or Trading Halted.